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Immortality is the ability to live forever, or eternal life.[2]
Biological forms have inherent
limitations which medical interventions or engineering may or may not be able to overcome.
Natural selection has developed potential biological immortality in at least one species, the
jellyfish Turritopsis nutricula.[3]
Certain scientists, futurists, and philosophers, have theorized about the immortality of the human
body, and advocate that human immortality is achievable in the first few decades of the 21st
century, while other advocates believe that life extension is a more achievable goal in the short
term, with immortality awaiting further research breakthroughs into an indefinite future. Aubrey
de Grey, a researcher who has developed a series of biomedical rejuvenation strategies to reverse
human aging (called SENS), believes that his proposed plan for ending aging may be
implementable in two or three decades.[4]
The absence of aging would provide humans with
biological immortality, but not invulnerability to death by physical trauma. What form an
unending human life would take, or whether an immaterial soul exists and possesses immortality,
has been a major point of focus of religion, as well as the subject of speculation, fantasy, and
debate.
In religious contexts, immortality is often stated to be among the promises by God (or other
deities) to human beings who show goodness or else follow divine law (cf. resurrection).
The Epic of Gilgamesh, one of the first literary works, dating back at least to the 22nd century
BC, is primarily a quest of a hero seeking to become immortal.[5]
Wittgenstein, in a notably non-theological interpretation of eternal life, writes in the Tractatus
that, "If we take eternity to mean not infinite temporal duration but timelessness, then eternal life
belongs to those who live in the present."[6]
Contents
1 Definitions
o 1.1 Scientific
o 1.2 Religious
2 Physical immortality
o 2.1 Causes of death
o 2.2 Biological immortality
o 2.3 Prospects for human biological immortality
o 2.4 Mystical and religious pursuits of physical immortality
3 Religious views
o 3.1 Ancient Greek religion
o 3.2 Buddhism
o 3.3 Christianity
o 3.4 Hinduism
o 3.5 Islam
o 3.6 Judaism
o 3.7 Taoism
o 3.8 Zoroastrianism
4 Ethics of immortality
o 4.1 Undesirability of immortality
5 Politics
6 Symbols
7 Fiction
8 See also
9 References
10 Further reading
11 External links
o 11.1 Religious and spiritual prospects for immortality
o 11.2 In literature
Definitions
Scientific
Life extension technologies promise a path to complete rejuvenation. Cryonics holds out the
hope that the dead can be revived in the future, following sufficient medical advancements.
While, as shown with creatures such as hydra and planarian worms, it is indeed possible for a
creature to be biologically immortal, it is not yet known if it is possible for humans.
Mind uploading is the concept of transference of consciousness from a human brain to an
alternative medium providing the same functionality. Assuming the process to be possible and
repeatable, this would provide immortality to the consciousness, as predicted by futurists such as
Ray Kurzweil.[7]
Religious
The belief in an afterlife is a fundamental tenet of most religions, including Hinduism, Sikhism,
Christianity, Zoroastrianism, Islam, Judaism, and the Bahá'í Faith; however, the concept of an
immortal soul is not. The "soul" itself has different meanings and is not used in the same way in
different religions and different denominations of a religion. For example, various branches of
Christianity have disagreeing views on the soul's immortality and its relation to the body (cf.
Soul (spirit)).
Physical immortality
Physical immortality is a state of life that allows a person to avoid death and maintain conscious
thought. It can mean the unending existence of a person from a physical source other than
organic life, such as a computer. In the early 21st century, physical immortality remains a goal
rather than a current reality. Active pursuit of physical immortality can either be based on
scientific trends, such as cryonics, digital immortality, breakthroughs in rejuvenation or
predictions of an impending technological singularity, or because of a spiritual belief, such as
those held by Rastafarians or Rebirthers.
Causes of death
This section includes a list of references, but its sources remain unclear because it has
insufficient inline citations. Please help to improve this article by introducing more
precise citations. (November 2010)
Main article: Death
There are three main causes of death: aging, disease and trauma.[8]
Aging
Aubrey de Grey, a leading researcher in the field,[5]
defines aging as follows: "a collection of
cumulative changes to the molecular and cellular structure of an adult organism, which result in
essential metabolic processes, but which also, once they progress far enough, increasingly
disrupt metabolism, resulting in pathology and death." The current causes of aging in humans are
cell loss (without replacement), DNA damage, oncogenic nuclear mutations and epimutations,
cell senescence, mitochondrial mutations, lysosomal aggregates, extracellular aggregates,
random extracellular cross-linking, immune system decline, and endocrine changes. Eliminating
aging would require finding a solution to each of these causes, a program de Grey calls
engineered negligible senescence. It has also been researched that aging is not driven by genes,
and that it is driven by random events. Everything in the world changes or ages without being
driven by a purpose. There is also no direct evidence that proves that age changes are governed
by a genetic program. There is also a huge body of knowledge indicating that change is
characterized by the loss of molecular fidelity.[9]
This leads to the fact that there is no longer a
chance for repair and turnover, increasing the vulnerability to pathology or age-associated
diseases.
Disease
Disease is theoretically surmountable via technology. In short, it is an abnormal condition
affecting the body of an organism, something the body shouldn't typically have to deal with its
natural make up.[10]
Human understanding of genetics is leading to cures and treatments for
myriad previously incurable diseases. The mechanisms by which other diseases do their damage
are becoming better understood. Sophisticated methods of detecting diseases early are being
developed. Preventative medicine is becoming better understood. Neurodegenerative diseases
like Parkinson's and Alzheimer's may soon be curable with the use of stem cells. Breakthroughs
in cell biology and telomere research are leading to treatments for cancer. Vaccines are being
researched for AIDS and tuberculosis. Genes associated with type 1 diabetes and certain types of
cancer have been discovered allowing for new therapies to be developed. Artificial devices
attached directly to the nervous system may restore sight to the blind. Drugs are being developed
to treat myriad other diseases and ailments.
Trauma
Physical trauma would remain as a threat to perpetual physical life, even if the problems of aging
and disease were overcome, as an otherwise immortal person would still be subject to unforeseen
accidents or catastrophes. Longevity researchers would prefer to mitigate the risk of
encountering trauma. Taking preventative measures by engineering inherent resistance to injury
is thus relevant, in addition to entirely reactive measures more closely associated with the
paradigm of medical treatment.[citation needed]
The speed and quality of paramedic response remains a determining factor in surviving severe
trauma.[11]
A body that could automatically treat itself from severe trauma, such as speculated
uses for nanotechnology, would mitigate this factor. Without improvements to such things, very
few people would remain alive after several tens of thousands of years purely based on accident
rate statistics, much less millions or billions or more.[citation needed]
Being the seat of consciousness, the brain cannot be risked to trauma if a continuous physical life
is to be maintained. Therefore, it cannot be replaced or repaired in the same way other organs
can. A method of transferring consciousness would be required for an individual to survive
trauma to the brain, and this transfer would have to anticipate and precede the damage
itself.[citation needed]
If there is no limitation on the degree of gradual mitigation of risk then it is possible that the
cumulative probability of death over an infinite horizon is less than certainty, even when the risk
of fatal trauma in any finite period is greater than zero. Mathematically, this is an aspect of
achieving "Actuarial escape velocity".
Biological immortality
Human chromosomes (grey) capped by telomeres (white)
Main article: Biological immortality
Biological immortality is an absence of aging, specifically the absence of a sustained increase in
rate of mortality as a function of chronological age. A cell or organism that does not experience
aging, or ceases to age at some point, is biologically immortal.
Biologists have chosen the word immortal to designate cells that are not limited by the Hayflick
limit, where cells no longer divide because of DNA damage or shortened telomeres. The first and
still most widely used immortal cell line is HeLa, developed from cells taken from the malignant
cervical tumor of Henrietta Lacks without her consent in 1951. Prior to the 1961 work of
Leonard Hayflick and Paul Moorhead, there was the erroneous belief fostered by Alexis Carrel
that all normal somatic cells are immortal. By preventing cells from reaching senescence one can
achieve biological immortality; telomeres, a "cap" at the end of DNA, are thought to be the cause
of cell aging. Every time a cell divides the telomere becomes a bit shorter; when it is finally
worn down, the cell is unable to split and dies. Telomerase is an enzyme which rebuilds the
telomeres in stem cells and cancer cells, allowing them to replicate an infinite number of
times.[12]
No definitive work has yet demonstrated that telomerase can be used in human somatic
cells to prevent healthy tissues from aging. On the other hand, scientists hope to be able to grow
organs with the help of stem cells, allowing organ transplants without the risk of rejection,
another step in extending human life expectancy. These technologies are the subject of ongoing
research, and are not yet realized.[citation needed]
Biologically immortal species
See also List of long-living organisms
Life defined as biologically immortal is still susceptible to causes of death besides aging,
including disease and trauma, as defined above. Notable immortal species include:
Turritopsis nutricula, a jellyfish, after becoming a sexually mature adult, can transform
itself back into a polyp using the cell conversion process of transdifferentiation.[3]
Turritopsis nutricula repeats this cycle, meaning that it may have an indefinite
lifespan.[13]
Its immortal adaptation has allowed it to spread from its original habitat in
the Caribbean to "all over the world".[14]
Bacteria (as a colony) – Bacteria reproduce through Binary Fission. A parent bacterium
splits itself into two identical daughter cells. These daughter cells then split themselves in
half. This process repeats, thus making the bacterium colony essentially immortal.
A 2005 PLoS Biology paper[15]
suggests that in a bacterial colony, every particular
bacterial cell may be considered to eventually die since after each division the daughter
cells can be identified as the older and the younger, and the older is slightly smaller,
weaker, and more likely to die than the younger.[16]
Bristlecone Pines are speculated to be potentially immortal;[citation needed]
the oldest known
living specimen is over 5,000 years old.
Hydra is a genus of simple fresh-water animal possessing radial symmetry. Hydras are
predatory animals belonging to the phylum Cnidaria and the class Hydrozoa.[17]
Evolution of aging
Main article: Evolution of aging
As the existence of biologically immortal species demonstrates, there is no thermodynamic
necessity for senescence: a defining feature of life is that it takes in free energy from the
environment and unloads its entropy as waste. Living systems can even build themselves up
from seed, and routinely repair themselves. Aging is therefore presumed to be a byproduct of
evolution, but why mortality should be selected for remains a subject of research and debate.
Programmed cell death and the telomere "end replication problem" are found even in the earliest
and simplest of organisms.[18]
This may be a tradeoff between selecting for cancer and selecting
for aging.[19]
Modern theories on the evolution of aging include the following:
Mutation accumulation is a theory formulated by Peter Medawar in 1952 to explain how
evolution would select for aging. Essentially, aging is never selected against, as
organisms have offspring before the mortal mutations surface in an individual.
Antagonistic pleiotropy is a theory proposed as an alternative by George C. Williams, a
critic of Medawar, in 1957. In antagonistic pleiotropy, genes carry effects that are both
beneficial and detrimental. In essence this refers to genes that offer benefits early in life,
but exact a cost later on, i.e. decline and death.[20]
The disposable soma theory was proposed in 1977 by Thomas Kirkwood, which states
that an individual body must allocate energy for metabolism, reproduction, and
maintenance, and must compromise when there is food scarcity. Compromise in
allocating energy to the repair function is what causes the body gradually to deteriorate
with age, according to Kirkwood.[21]
Prospects for human biological immortality
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insufficient inline citations. Please help to improve this article by introducing more
precise citations. (November 2010)
Life-extending substances
There are some known naturally occurring and artificially produced chemicals that may increase
the lifetime or life-expectancy of a person or organism, such as resveratrol.[22][23]
Future research
might enable scientists to increase the effect of these existing chemicals or to discover new
chemicals (life-extenders) which might enable a person to stay alive as long as the person
consumes them at specified periods of time.[citation needed]
Scientists believe that boosting the amount or proportion of a naturally forming enzyme,
telomerase, in the body could prevent cells from dying and so may ultimately lead to extended,
healthier lifespans. Telomerase is a protein that helps maintain the protective caps at the ends of
chromosomes.[24]
A team of researchers at the Spanish National Cancer Centre (Madrid) tested
the hypothesis on mice. It was found that those mice which were genetically engineered to
produce 10 times the normal levels of telomerase lived 50% longer than normal mice.[25]
In normal circumstances, without the presence of telomerase, if a cell divides repeatedly, at some
point all the progeny will reach their Hayflick limit. With the presence of telomerase, each
dividing cell can replace the lost bit of DNA, and any single cell can then divide unbounded.
While this unbounded growth property has excited many researchers, caution is warranted in
exploiting this property, as exactly this same unbounded growth is a crucial step in enabling
cancerous growth. If an organism can replicate its body cells faster, then it would theoretically
stop aging.
Embryonic stem cells express telomerase, which allows them to divide repeatedly and form the
individual. In adults, telomerase is highly expressed in cells that need to divide regularly (e.g., in
the immune system), whereas most somatic cells express it only at very low levels in a cell-cycle
dependent manner.
Technological immortality
Main article: Transhumanism
Technological immortality is the prospect for much longer life spans made possible by scientific
advances in a variety of fields: nanotechnology, emergency room procedures, genetics,
biological engineering, regenerative medicine, microbiology, and others. Contemporary life
spans in the advanced industrial societies are already markedly longer than those of the past
because of better nutrition, availability of health care, standard of living and bio-medical
scientific advances. Technological immortality predicts further progress for the same reasons
over the near term. An important aspect of current scientific thinking about immortality is that
some combination of human cloning, cryonics or nanotechnology will play an essential role in
extreme life extension. Robert Freitas, a nanorobotics theorist, suggests tiny medical nanorobots
could be created to go through human bloodstreams, find dangerous things like cancer cells and
bacteria, and destroy them.[26]
Freitas anticipates that gene-therapies and nanotechnology will
eventually make the human body effectively self-sustainable and capable of living indefinitely,
short of severe brain trauma. This supports the theory that we will be able to continually create
biological or synthetic replacement parts to replace damaged or dying ones.
Cryonics
Main article: Cryonics
Cryonics, the practice of preserving organisms (either intact specimens or only their brains) for
possible future revival by storing them at cryogenic temperatures where metabolism and decay
are almost completely stopped, can be used to 'pause' for those who believe that life extension
technologies will not develop sufficiently within their lifetime. Ideally, cryonics would allow
clinically dead people to be brought back in the future after cures to the patients' diseases have
been discovered and aging is reversible. Modern cryonics procedures use a process called
vitrification which creates a glass-like state rather than freezing as the body is brought to low
temperatures. This process reduces the risk of ice crystals damaging the cell-structure, which
would be especially detrimental to cell structures in the brain, as their minute adjustment evokes
the individual's mind.
Mind-to-computer uploading
Main article: Mind uploading
One idea that has been advanced involves uploading an individual's personality and memories
via direct mind-computer interface. The individual's memory may be loaded to a computer or to
a newly born baby's mind. The baby will then grow with the previous person's individuality, and
may not develop its own personality. Extropian futurists like Moravec and Kurzweil have
proposed that, thanks to exponentially growing computing power, it will someday be possible to
upload human consciousness onto a computer system, and live indefinitely in a virtual
environment. This could be accomplished via advanced cybernetics, where computer hardware
would initially be installed in the brain to help sort memory or accelerate thought processes.
Components would be added gradually until the person's entire brain functions were handled by
artificial devices, avoiding sharp transitions that would lead to issues of identity. After this point,
the human body could be treated as an optional accessory and the mind could be transferred to
any sufficiently powerful computer. Another possible mechanism for mind upload is to perform
a detailed scan of an individual's original, organic brain and simulate the entire structure in a
computer. What level of detail such scans and simulations would need to achieve to emulate
consciousness, and whether the scanning process would destroy the brain, is still to be
determined.[27]
Whatever the route to mind upload, persons in this state would then be essentially
immortal, short of loss or traumatic destruction of the machines that maintained them. Time's
futurists, as well as Dmitry Itskov, head of the 2045 Initiative predict that this technology will be
available by 2045.[citation needed]
Cybernetics
Main article: Cyborg
Transforming a human into a cyborg can include brain implants or extracting a human mind and
placing it in a robotic life-support system. Even replacing biological organs with robotic ones
could increase life span (i.e., pace makers) and depending on the definition, many technological
upgrades to the body, like genetic modifications or the addition of nanobots would qualify an
individual as a cyborg. Such modifications would make one impervious to aging and disease and
theoretically immortal unless killed or destroyed.
Evolutionary immortality
Joseph Wright of Derby, The Alchymist, In Search of the Philosopher's Stone, 1771
Another approach, developed by biogerontologist Marios Kyriazis, holds that human biological
immortality is an inevitable consequence of evolution. As the natural tendency is to create
progressively more complex structures,[28]
there will be a time (Kyriazis claims this time is
now[29]
), when evolution of a more complex human brain will be faster via a process of
developmental singularity[30]
rather than through Darwinian evolution. In other words, the
evolution of the human brain as we know it will cease and there will be no need for individuals
to procreate and then die. Instead, a new type of development will take over, in the same
individual who will have to live for many centuries in order for the development to take place.
This intellectual development will be facilitated by technology such as synthetic biology,
artificial intelligence and a technological singularity process.
Mystical and religious pursuits of physical immortality
Many Indian fables and tales include instances of metempsychosis—the ability to jump into
another body—performed by advanced Yogis in order to live a longer life. There are also entire
Hindu sects devoted to the attainment of physical immortality by various methods, namely the
Naths and the Aghoras.[citation needed]
Long before modern science made such speculation feasible, people wishing to escape death
turned to the supernatural world for answers. Examples include Chinese Taoists[citation needed]
and
the medieval alchemists and their search for the Philosopher's Stone, or more modern religious
mystics, who believed in the possibility of achieving physical immortality through spiritual
transformation.
Individuals claiming to be physically immortal include Comte de Saint-Germain; in 18th century
France, he claimed to be centuries old, and people who adhere to the Ascended Master
Teachings are convinced of his physical immortality.[citation needed]
An Indian saint known as
Vallalar claimed to have achieved immortality before disappearing forever from a locked room
in 1874.[31][unreliable source?]
Rastafarians believe in physical immortality as a part of their religious doctrines. They believe
that after God has called the Day of Judgment they will go to what they describe as Mount Zion
in Africa to live in freedom forever. They avoid the term "everlasting life" and deliberately use
"ever-living" instead.
Another group that believes in physical immortality are the Rebirthers, who believe that by
following the connected breathing process of rebirthing they can physically live forever.[citation
needed]
Religious views
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insufficient inline citations. Please help to improve this article by introducing more
precise citations. (November 2010)
Main articles: Afterlife and Soul
The world's major religions hold a number of perspectives on spiritual immortality, the unending
existence of a person from a nonphysical source or in a nonphysical state such as a soul.
However any doctrine in this area misleads without a prior definition of "soul". Another problem
is that "soul" is often confused and used synonymously or interchangeably with "spirit".
As late as 1952, the editorial staff of the Syntopicon found in their compilation of the Great
Books of the Western World, that "The philosophical issue concerning immortality cannot be
separated from issues concerning the existence and nature of man's soul."[32]
Thus, the vast
majority of speculation regarding immortality before the 21st century was regarding the nature of
the afterlife.
In both Western and Eastern religions, the spirit is an energy or force that transcends the mortal
body, and returns to the spirit realm whether to enjoy heavenly bliss or suffer eternal torment in
hell, or the cycle of life, directly or indirectly depending on the tradition.
Ancient Greek religion
In ancient Greek religion, immortality originally always included an eternal union of body and
soul, as can be seen in Homer, Hesiod, and various other ancient texts. The soul was considered
to have an eternal existence in Hades, but without the body the soul was considered dead.
Although almost everybody had nothing to look forward to but an eternal existence as a
disembodied dead soul, a number of men and women were considered to have gained physical
immortality and been brought to live forever in either Elysium, the Islands of the Blessed,
heaven, the ocean or literally right under the ground. Among these were Amphiaraus,
Ganymede, Ino, Iphigenia, Menelaus, Peleus, and a great part of those who fought in the Trojan
and Theban wars. Some were considered to have died and been resurrected before they achieved
physical immortality. Asclepius was killed by Zeus only to be resurrected and transformed into a
major deity. Achilles, after being killed, was snatched from his funeral pyre by his divine mother
Thetis, resurrected, and brought to an immortal existence in either Leuce, the Elysian plains, or
the Islands of the Blessed. Memnon, who was killed by Achilles, seems to have a received a
similar fate. Alcmene, Castor, Heracles, and Melicertes were also among the figures sometimes
considered to have been resurrected to physical immortality. According to Herodotus' Histories,
the 7th century BC sage Aristeas of Proconnesus was first found dead, after which his body
disappeared from a locked room. Later he was found not only to have been resurrected but to
have gained immortality.[33]
The philosophical idea of an immortal soul was a belief first appearing with either Pherecydes or
the Orphics, and most importantly advocated by Plato and his followers. This, however, never
became the general norm in Hellenistic thought. As may be witnessed even into the Christian
era, not least by the complaints of various philosophers over popular beliefs, many or perhaps
most traditional Greeks maintained the conviction that certain individuals were resurrected from
the dead and made physically immortal and that others could only look forward to an existence
as disembodied and dead, though everlasting, souls. The parallel between these traditional beliefs
and the later resurrection of Jesus was not lost on the early Christians, as Justin Martyr argued:
"when we say ... Jesus Christ, our teacher, was crucified and died, and rose again, and ascended
into heaven, we propose nothing different from what you believe regarding those whom you
consider sons of Zeus." (1 Apol. 21).[34]
Buddhism
Buddhism teaches that there is a cycle of birth, death, and rebirth and that the process is
according to the qualities of a person's actions. This constant process of becoming ceases at the
fruition of Bodhi (enlightenment) at which a being is no longer subject to causation (karma) but
enters into a state that the Buddha called amata (deathlessness).
According to the philosophical premise of the Buddha, the initiate to Buddhism who is to be
"shown the way to Immortality (amata)",[35]
wherein liberation of the mind (cittavimutta) is
effectuated through the expansion of wisdom and the meditative practices of sati and samādhi,
must first be educated away from his former ignorance-based (avijja) materialistic proclivities in
that he "saw any of these forms, feelings, or this body, to be my Self, to be that which I am by
nature".
Thus, desiring a soul or ego (ātman) to be permanent is a prime consequence of ignorance, itself
the cause of all misery and the foundation of the cycle of rebirth (saṃsāra). Form and
consciousness being two of the five skandhas, or aggregates of ignorance[citation needed]
, Buddhism
teaches that physical immortality is neither a path to enlightenment, nor an attainable goal[citation
needed]: even the gods which can live for eons eventually die. Upon enlightenment, the "karmic
seeds" (saṅkhāras or sanskaras) for all future becoming and rebirth are exhausted. After
biological death an arhat, or buddha, enters into parinirvana, a state of deathlessness due to the
absence of rebirth, which resulted from cessation of wantings.
Christianity
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Main article: Eternal life (Christianity)
Adam and Eve condemned to mortality. Hans Holbein the Younger, Danse Macabre, 16th
century
Christian theology holds that Adam and Eve lost physical immortality for themselves and all
their descendants in the Fall of Man, though this initial "imperishability of the bodily frame of
man" was "a preternatural condition".[36]
Christians who profess the Nicene Creed believe that every dead person (whether they believed
in Christ or not) will be resurrected from the dead, and this belief is known as Universal
resurrection.
Bible passages like 1 Corinthians 15 are interpreted as teaching that the resurrected body will,
like the present body, be both physical (but a renewed and non-decaying physical body) and
spiritual.
Contrary to common belief, there is no biblical support of "soul immortality" as such in the New
Testament, see Soul in the Bible. The theme in the Bible is "resurrection life" which imparts
immortality, not about "soul" remaining after death. Luther and others rejected Calvin's idea of
"soul immortality". Specific imagery of resurrection into immortal form is found in the Pauline
letters:
Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,
In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the
dead shall be raised incorruptible, and we shall be changed.
For this corruptible must put on incorruption, and this mortal must put on immortality.
So when this corruptible shall have put on incorruption, and this mortal shall have put on
immortality, then shall be brought to pass the saying that is written, Death is swallowed up in
victory.
O death, where is thy sting? O grave, where is thy victory?
The sting of death is sin; and the strength of sin is the law.
But thanks be to God, which giveth us the victory through our Lord Jesus Christ.
Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of
the Lord, forasmuch as ye know that your labour is not in vain in the Lord.
—1 Corinthians 15:51–58
In Romans 2:6–7 Paul declares that God "will render to every man according to his deeds: To
them who by patient continuance in well doing seek for glory and honour and immortality,
eternal life", but then in Romans 3 warns that no one will ever meet this standard with their own
power but that Jesus did it for us.
Born-again Christians believe that after the Last Judgment, those who have been "born again"
will live forever in the presence of God, and those who were never "born again" will be
abandoned to never-ending consciousness of guilt, separation from God, and punishment for sin.
Eternal death is depicted in the Bible as a realm of constant physical and spiritual anguish in a
lake of fire, and a realm of darkness away from God. Some see the fires of Hell as a theological
metaphor, representing the inescapable presence of God endured in absence of love for God;
others suggest that Hell represents complete destruction of both the physical body and of
spiritual existence.
N.T. Wright, a theologian and former Bishop of Durham, has said many people forget the
physical aspect of what Jesus promised. He told Time: "Jesus' resurrection marks the beginning
of a restoration that he will complete upon his return. Part of this will be the resurrection of all
the dead, who will 'awake', be embodied and participate in the renewal. John Polkinghorne, a
physicist and a priest, has put it this way: 'God will download our software onto his hardware
until the time he gives us new hardware to run the software again for ourselves.' That gets to two
things nicely: that the period after death (the Intermediate state) is a period when we are in God's
presence but not active in our own bodies, and also that the more important transformation will
be when we are again embodied and administering Christ's kingdom."[37]
This kingdom will
consist of Heaven and Earth "joined together in a new creation", he said.
Roman Catholicism
Catholic Christians teach that there is a supernatural realm called Purgatory where souls who
have died in a state of grace but have yet to expiate venial sins or temporal punishments due to
past sins are cleansed before they are admitted into Heaven.[citation needed]
The Catholic Church also
professes a belief in the resurrection of the body. It is believed that, before the Final Judgement,
the souls of all who have ever lived will be reunited with their resurrected body.[citation needed]
In
the case of the righteous, this will result in a glorified body which can reside in Heaven. The
damned, too, shall reunite body and soul, but shall remain eternally in Hell.[citation needed]
Seventh-day Adventists
Seventh-day Adventists believe that only God has immortality, and when a person dies, death is
a state of unconscious sleep until the resurrection. They base this belief on biblical texts such as
Ecclesiastes 9:5 which states "the dead know nothing", and 1 Thessalonians 4:13–18 which
contains a description of the dead being raised from the grave at the second coming.
"And the LORD God formed man of the dust of the ground, and breathed into his nostrils
the breath of life; and man became a living soul." (cf. Gen 2:7)
The text of Genesis 2:7 clearly states that God breathed into the formed man the "breath of life"
and man became a living soul. He did not receive a living soul; he became one. The New King
James Bible states that "man became a living being". According to the Scriptures, only man
received life in this way from God. Because of this man is the only living creature to have a soul.
"And out of the ground the Lord God formed every beast of the field ... wherein is the
breath of life." (cf. Genesis 2:19, 7:15)
"Both man and beast ... have all one breath, so that a man hath no preeminence above the
beast."(cf. Ecclesiastes 3:19)
Of the many references to soul and spirit in the Bible, never once is either the soul or the spirit
declared to be immortal, imperishable or eternal. Indeed only God has immortality (1 Timothy
1:17; 6:16). Adventists teach that the resurrection of the righteous will take place at the second
coming of Jesus, at which time they will be restored to life and taken to reside in Heaven.
Jehovah's Witnesses
Jehovah's Witnesses believe the word soul (nephesh or psykhe) as used in the Bible is a person,
an animal, or the life a person or animal enjoys. Hence, the soul is not part of man, but is the
whole man—man as a living being. Hence, when a person or animal dies, the soul dies, and
death is a state of non-existence, based on Psalms 146:4, Ezekiel 18:4, and other passages.[38]
Hell (Hades or Sheol) is not a place of fiery torment, but rather the common grave of humankind,
a place of unconsciousness.[39][40]
After the final judgment, it is expected that the righteous will receive eternal life and live forever
in an Earth turned into a paradise. Another group referenced as "the little flock" of 144,000
people will receive immortality and go to heaven to rule as Kings and Priests. Jehovah's
Witnesses make the distinction that those with "eternal life" can die though they do not succumb
to disease or old age, whereas immortal ones cannot die by any cause.[41]
They teach that Jesus
was the first to be rewarded with heavenly immortality, but that Revelation 7:4 and Revelation
14:1, 3 refer to a literal number (144,000) of additional people who will become "self-
sustaining", that is, not needing anything outside themselves (food, sunlight, etc.) to maintain
their own life.[42]
Church of Jesus Christ of Latter-day Saints (Mormonism)
Illustration of the Mormon plan of salvation.
In Latter-day Saint (Mormon) theology, the spirit and the body constitute the human soul.
Whereas the human body is subject to death on earth, they believe that the spirit never ceases to
exist and that one day the spirits and bodies of all mankind will be reunited again. This doctrine
stems from their belief that the resurrection of Jesus Christ grants the universal gift of
immortality to every human being.
Members of the Church of Jesus Christ of Latter-day Saints also believe that, prior to their
mortal birth, individuals existed as men and women in a spiritual state. That period of life is
referred to as the first estate or the Pre-existence. Latter-day Saints cite Biblical scriptures, such
as Jeremiah 1:5, as an allusion to the concept that mankind had a preparation period prior to
mortal birth: "Before I formed thee in the belly I knew thee; and before thou camest forth out of
the womb I sanctified thee, and I ordained thee a prophet unto the nations".[43]
Joseph Smith, Jr.,
the founder of the Latter Day Saint movement, provided a description of the afterlife based upon
a vision he received, which is recorded within the Church of Jesus Christ of Latter-day Saint's
canonical writings entitled Doctrine and Covenants.[44]
According to the 76th section of the LDS
scripture, the afterlife consists of three degrees or kingdoms of glory, called the Celestial
Kingdom, the Terrestrial Kingdom, and the Telestial Kingdom. Other Biblical scriptures speak
of varying degrees of glory, such as 1 Corinthians 15:40-41: "There are also celestial bodies,
and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is
another. There is one glory of the sun, and another glory of the moon, and another glory of the
stars: for one star cdiffereth from another star in glory."
The few who do not inherit any degree of glory (though they are resurrected) reside in a state
called outer darkness, which, though not a degree of glory, is often discussed in this context.
Only those known as the "Sons of Perdition" are condemned to this state.
Other Christian beliefs
The doctrine of conditional immortality states the human soul is naturally mortal, and that
immortality is granted by God as a gift. The doctrine is a "significant minority evangelical view"
that has "grown within evangelicalism in recent years".[45]
Some sects who hold to the doctrine of baptismal regeneration also believe in a third realm called
Limbo, which is the final destination of souls who have not been baptised, but who have been
innocent of mortal sin. Souls in Limbo include unbaptised infants and those who lived virtuously
but were never exposed to Christianity in their lifetimes. Christian Scientists believe that sin
brought death, and that death will be overcome with the overcoming of sin.
Hinduism
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Hinduism propounds that every living being, be it a human or animal, has a body and a soul
(consciousness) and the bridge between the two is the mind (a mixture of both). If there is an
imbalance between any of these three components it can result in illness and 'death'. 'Death' as
we know it,is the ceasing of the body to function and therefore the soul which is immortal will
have to migrate to another body and occupy some-other mind thereby creating consciousness
there, be it a human or animal depending upon the 'karma' or 'past deeds' done in the previous
physical body/bodies or life/lives. Central to the philosophy of Hinduism is 'BRAHMAN' which
is the embodiment of all souls and therefore the ultimate consciousness. BRAHMAN is infinite,
has no dimensions, and is embodiment of all knowledge and the absolute truth and therefore the
ultimate bliss and enlightenment for all souls. To join BRAHMAN is the ultimate goal of all
souls, a soul can only join BRAHMAN upon becoming perfect, until such time the soul will have
to keep changing bodies and experience events based on its karma in order to perfect itself and
therefore continues the cycle of birth and death. BRAHMAN is also the sum total of the trinity
gods (and avatars) worshiped by Hindus viz. 1.Brahma, the creator 2. Vishnu, the protector 3.
Shiva or Maheshwara, the destroyer. Brahma is responsible for sending the part of the
BRAHMAN which was imperfect to perfect itself on earth and for that purpose created various
levels of physical form. Vishnu who is the protector pronounces that one must perform ones
DHARMA or duty or follow the laws in-order to obtain good karma and hence graduate to a
high physical and mental form and finally join the ultimate BRAHMAN. Maheshwara or Shiva
is the god of destruction and 'death' says that just as a new star can only be born upon the
destruction of an old star which has been burning bright, just so do we find that only in complete
destruction is there creation and that the ultimate truth, immortality and permanence is in the soul
which joins the BRAHMAN and that physical matter is recycled over and over again. A soul will
have been successful when it stops getting recycled like lowly and unconscious physical matter
does. Therefore 'death' is not the end as the soul is immortal and endless.
Differences between Hinduism and Buddhism: 1) Buddha was one of the avatars of Vishnu, the
preachings of Buddha from the Hindu perspective represent only a fraction of the whole truth.
Buddha preaches that attachment with people was the cause of sorrow when 'death' happens and
therefore propagates detachment from people. Hinduism on the other hand does not teach
detachment, but stresses duty and how relations with people have to take place based on Dharma
or duty. In Hinduism, Lord Shiva explains 'death' to be a journey of the immortal soul in pursuit
of 'Moksha' and therefore a fact of life. 2) While Buddhism says retirement into the forest for
meditation is to take place starting from childhood, this is viewed as escapism by Hinduism.
Hinduism allows for this to happen only after performing all dharmas or duties of ones life,
starting from studying scriptures, working to support children and family and taking care of aged
parents, and lastly after all the dharma is done retire to the forest and slowly meditate and fast
until physical disintegration to reach the ultimate truth or BRAHMAN.
Terminology
Representation of a soul undergoing punarjanma. Illustration from Hinduism Today, 2004
Hindus believe in an immortal soul which is reincarnated after death. According to Hinduism,
people repeat a process of life, death, and rebirth in a cycle called samsara. If they live their life
well, their karma improves and their station in the next life will be higher, and conversely lower
if they live their life poorly. Eventually after many life times of perfecting its karma, the soul is
freed from the cycle and lives in perpetual bliss. There is no eternal torment in Hinduism,
temporal existence being harsh enough, although if a soul consistently lives very evil lives, it
could work its way down to the very bottom of the cycle. Punarjanma means the birth of a
person that pays for all the karma of previous lives in this birth.[citation needed]
Sri Aurobindo states that the Vedic and the post-Vedic rishis (such as Markandeya) attained
physical immortality, which includes the ability to change one's shape at will, and create multiple
bodies simultaneously in different locations.[citation needed]
There are explicit renderings in the Upanishads alluding to a physically immortal state brought
about by purification, and sublimation of the 5 elements that make up the body. For example in
the Shvetashvatara Upanishad (Chapter 2, Verse 12), it is stated "When earth, water fire, air and
akasa arise, that is to say, when the five attributes of the elements, mentioned in the books on
yoga, become manifest then the yogi's body becomes purified by the fire of yoga and he is free
from illness, old age and death."
The above phenomenon is possible when the soul reaches enlightenment while the body and
mind are still intact, an extreme rarity, and can only be achieved upon the highest most
dedication, meditation and consciousness.
Certain peculiar practices
The Aghoris of India consume human flesh in pursuit of immortality and supernatural powers,
they call themselves gods and according to them they punish the sinners by rewarding them
death on their way to immortality. But it is to be noted that today they only consume the humans
who are already dead and only those who wish to be treated this way upon death. They are
looked down upon by Brahmins because of their fascination for physical form as opposed to the
immortal soul aspect of it. Also vegetarianism which is propagated by hinduism is so completely
diregarded in that they even consume humans be it the already dead.[46]
They distinguish
themselves from other Hindu sects and priests by their alcoholic and cannibalistic rituals.[47]
Another view of immortality is traced to the Vedic tradition by the interpretation of Maharishi
Mahesh Yogi:
That man indeed whom these (contacts)
do not disturb, who is even-minded in
pleasure and pain, steadfast, he is fit
for immortality, O best of men.[48]
To Maharishi Mahesh Yogi, the verse means, "Once a man has become established in the
understanding of the permanent reality of life, his mind rises above the influence of pleasure and
pain. Such an unshakable man passes beyond the influence of death and in the permanent phase
of life: he attains eternal life ... A man established in the understanding of the unlimited
abundance of absolute existence is naturally free from existence of the relative order. This is
what gives him the status of immortal life."[48]
Islam
The Golden Gate in Jerusalem, known as "The Gate of Eternal Life" in Arabic, as it stood in
1900
This section has been nominated to be checked for its neutrality. Discussion of this
nomination can be found on the talk page. (October 2010)
This section needs attention from an expert in Islam. Please add a reason or a talk
parameter to this template to explain the issue with the section. WikiProject Islam (or its
Portal) may be able to help recruit an expert. (May 2008)
And they say [non-believers in Allah], "There is not but our worldly life; we die and live
(i.e., some people die and others live, replacing them) and nothing destroys us except time." And
when Our verses are recited to them as clear evidences, their argument is only that they say,
"Bring [back] our forefathers, if you should be truthful."
Say, "Allah causes you to live, then causes you to die; then He will assemble you for the Day of
Resurrection,
about which there is no doubt," but most of the people do not know.(Quran, 45:24–26)
Muslims believe that everyone will be resurrected after death. Those who believed in Islam and
led an evil life will undergo correction in Jahannam (Hell) but once this correction is over, they
are admitted to Jannat (Paradise) and attain immortality.[citation needed]
Infidels on the other hand
and those who committed unforgivable evil will never leave Hell. Some individuals will
therefore never taste Heaven.
(Quran,002.028) "How can ye reject the faith in Allah?- seeing that ye were without life, and He
gave you life; then will He cause you to die, and will again bring you to life; and again to Him
will ye return."
Muslims believe that the present life is a trial in preparation for the next realm of existence. He
says [man says], "Who will give life to bones while they are disintegrated?" Say, "He will give
them life who produced them the first time; and He is, of all creation, Knowing." [It is Allah] He
who made for you from the green tree, fire, and then from it you ignite. Is not He who created
the heavens and the earth Able to create the likes of them? Yes, [it is so]; and He is the Knowing
Creator. (Quran, 36:78–81)
But those who disbelieve say, "The Hour (i.e., the Day of Judgment) will not come to us." Say,
"Yes, by my Lord, it will surely come to you. [Allah is] the Knower of the unseen." Not absent
from Him is an atom's weight within the heavens or within the earth or [what is] smaller than
that or greater, except that it is in a clear register – That He may reward those who believe and
do righteous deeds. Those will have forgiveness and noble provision. But those who strive
against Our verses [seeking] to cause failure (i.e., to undermine their credibility) – for them will
be a painful punishment of foul nature. (Quran, 34:3–5)
Judaism
In both Judaism and Christianity, there is no biblical support of "soul immortality" as such.[citation
needed] The focus is on attaining resurrection life after death on the part of the believers.
Judaism claims that the righteous dead will be resurrected in the Messianic age with the coming
of the messiah. They will then be granted immortality in a perfect world. The wicked dead, on
the other hand, will not be resurrected at all. This is not the only Jewish belief about the afterlife.
The Tanakh is not specific about the afterlife, so there are wide differences in views and
explanations among believers.
The Hebrew Bible speaks about Sheol (לואש), originally a synonym of the grave-the repository of
the dead or the cessation of existence until the Resurrection. This doctrine of resurrection is
mentioned explicitly only in Daniel 12:1–4 although it may be implied in several other texts.
New theories arose concerning Sheol during the intertestamental literature. Some Hellenistic
Jews postulated that the soul (nefesh שפנ) was really immortal and that Sheol was actually a
destination of the dead awaiting the Resurrection, a syncretic form of Platonic Philosophy. By
the 2nd century BC, Jews who accepted the Oral Torah had come to believe that those in Sheol
awaited the resurrection either in Paradise (in the bosom of Abraham) or in Torment (Tartarus).
Taoism
It is repeatedly stated in Lüshi Chunqiu that death is unavoidable.[49]
Henri Maspero noted that
many scholarly works frame Taoism as a school of thought focused on the quest for
immortality.[50]
Isabelle Robinet asserts that Taoism is better understood as a way of life than as a
religion, and that its adherents do not approach or view Taoism the way non-Taoist historians
have done.[51]
In the Tractate of Actions and their Retributions, a traditional teaching, spiritual
immortality can be rewarded to people who do a certain amount of good deeds and live a simple,
pure life. A list of good deeds and sins are tallied to determine whether or not a mortal is worthy.
Spiritual immortality in this definition allows the soul to leave the earthly realms of afterlife and
go to pure realms in the Taoist cosmology. [52]
Zoroastrianism
Zoroastrians believe that on the fourth day after death, the human soul leaves the body and the
body remains as an empty shell. Souls would go to either heaven or hell; these concepts of the
afterlife in Zoroastrianism may have influenced Abrahamic religions. The word immortal is
driven from the month "Amurdad", meaning "deathless" in Persian, in the Iranian calendar (near
the end of July). The month of Amurdad or Ameretat is celebrated in Persian culture as ancient
Persians believed the "Angel of Immortality" won over the "Angel of Death" in this month.[53]
Ethics of immortality
See also Life extension – Ethics and politics of life extension
The possibility of clinical immortality raises a host of medical, philosophical, and religious
issues and ethical questions. These include persistent vegetative states, the nature of personality
over time, technology to mimic or copy the mind or its processes, social and economic
disparities created by longevity, and survival of the heat death of the universe.
Undesirability of immortality
The doctrine of immortality is essential to many of the world's religions. Narratives from
Christianity and Islam assert that immortality is not desirable to the unfaithful:
The poor man died and was carried away by the angels to be with Abraham. The rich man also
died and was buried. In Hades, where he was being tormented, he looked up and saw Abraham
far away with Lazarus by his side. He called out, 'Father Abraham, have mercy on me, and send
Lazarus to dip the tip of his finger in water and cool my tongue; for I am in agony in these
flames.' But Abraham said, 'Child, remember that during your lifetime you received your good
things, and Lazarus in like manner evil things; but now he is comforted here, and you are in
agony. Besides all this, between you and us a great chasm has been fixed, so that those who
might want to pass from here to you cannot do so, and no one can cross from there to us.'
—Luke 16:22–26 NIV Translation
Those who are wretched shall be in the Fire: There will be for them therein (nothing but) the
heaving of sighs and sobs: They will dwell therein for all the time that the heavens and the earth
endure, except as thy Lord willeth: for thy Lord is the (sure) accomplisher of what He planneth.
And those who are blessed shall be in the Garden: They will dwell therein for all the time that
the heavens and the earth endure, except as thy Lord willeth: a gift without break.
—The Qur'an, 11:106–108
The modern mind has addressed the undesirability of immortality. Science fiction writer Isaac
Asimov commented, "There is nothing frightening about an eternal dreamless sleep. Surely it is
better than eternal torment in Hell and eternal boredom in Heaven."
Physical immortality has also been imagined as a form of eternal torment, as in Mary Shelley's
short story "The Mortal Immortal", the protagonist of which witnesses everyone he cares about
dying around him. Jorge Luis Borges explored the idea that life gets its meaning from death in
the short story "The Immortal"; an entire society having achieved immortality, they found time
becoming infinite, and so found no motivation for any action. In his book "Thursday's Fictions",
and the stage and film adaptations of it, Richard James Allen tells the story of a woman named
Thursday who tries to cheat the cycle of reincarnation to get a form of eternal life. At the end of
this fantastical tale, her son, Wednesday, who has witnessed the havoc his mother's quest has
caused, forgoes the opportunity for immortality when it is offered to him.[54]
Likewise, the novel
Tuck Everlasting depicts immortality as "falling off the wheel of life" and is viewed as a curse as
opposed to a blessing.
University of Cambridge philosopher Simon Blackburn, in his essay "Religion and Respect,"
writes, ". . . things do not gain meaning by going on for a very long time, or even forever.
Indeed, they lose it. A piece of music, a conversation, even a glance of adoration or a moment of
unity have their alloted time. Too much and they become boring. An infinity and they would be
intolerable."
Politics
Although scientists state that radical life extension, delaying and stopping aging are
achievable,[55]
there are still no international or national programs focused on stopping aging or
on radical life extension. In 2012 in Russia, and then in the United States, Israel and the
Netherlands, pro-immortality political parties were launched. They aimed to provide political
support to anti-aging and radical life extension research and technologies and at the same time
transition to the next step, radical life extension, life without aging, and finally, immortality and
aim to make possible access to such technologies to most currently living people.[56]
Symbols
Ankh
Trefoil knot
There are numerous symbols representing immortality. Pictured here is an Egyptian symbol of
life that holds connotations of immortality when depicted in the hands of the gods and pharaohs
who were seen as having control over the journey of life, the ankh (left). The Möbius strip in the
shape of a trefoil knot is another symbol of immortality. Most symbolic representations of
infinity or the life cycle are often used to represent immortality depending on the context they are
placed in. Other examples include the Ouroboros, the Chinese fungus of longevity, the ten kanji,
the phoenix, the peacock in Christianity,[57]
and the colors amaranth (in Western culture) and
peach (in Chinese culture).
Fiction
Main article: Immortality in fiction
Immortal species abound in fiction, especially in fantasy literature.
See also
List of life extension-related topics
Ambrosia
Amrita
Bioethics
Biogerontology
Chiranjeevin
Consciousness after death (science)
Crown of Immortality
Dyson's eternal intelligence
Elixir of life
Eternal youth
Ghost
Immortal DNA strand hypothesis
Immortalist Society
Immortality Institute
Immortality test
Indefinite lifespan
Infinity
Internal alchemy
Lich
Life extension
List of people claimed to be immortal in myth and legend
Longevity
Methuselah Mouse Prize
Molecular nanotechnology
Negligible senescence
Tipler's Omega Point
Organlegging
Posthuman
Queen Mother of the West
Rejuvenation (aging)
Simulated reality
Suspended animation
Nikola Tesla
Transhumanism
Vampire
Xian (Taoism)
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52. ^ Translated by Legge, James. The Texts of Taoism. 1962, Dover Press. NY.
53. ^ Hoshang, Dr. Bhadha. http://tenets.zoroastrianism.com/topi33.html
54. ^ Allen, Richard James, "Thursday's Fictions", originally published by Five Islands
Press, Wollongong, in 1999, republished online in 2011 at the Australian Poetry Library
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56. ^ A Single-Issue Political Party for Longevity Science
57. ^ Wilson, Ralph F. "Peacock as an Ancient Christian Symbol of Eternal Life". Jesus
Walk Bible Study Series. Retrieved January 18, 2011.
Further reading
Allen, Richard James (1999). Thursday's Fictions. Wollongong: Five Islands Press.
ISBN 0-86418-596-0.
Alexander, Brian (2003). Rapture: How Biotech Became the New Religion. Basic Books.
ISBN 0-7382-0761-6.
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The Methuselah Foundation Aubrey de Grey's non-profit organization dedicated to
finding a cure for aging
KurzweilAI.net Ray Kurzweil resource site
BiologicalGerontology.com Chris Smelick's Biogerontology site
Vitae Institute Chris Smelick's non-profit organization
ELPIs Theory Marios Kyriazis' theory of human biological immortality
Immortality Institute Scientific and sociological discussions, activism, research
Religious and spiritual prospects for immortality
"Death and Immortality" Dictionary of the History of Ideas, etext at the University of
Virginia Library
"Immortality" Immortality – What Will Eternal Life Be Like?
The Immortality of the Soul and the Resurrection of the Body Lecture by Heinrich J.
Vogel
An Essay on the Scriptural Doctrine of Immortality by James Challis
Eternity: Christ’s Return, Chiliasm, Resurrection of the Dead, Judgment, Hell, Luther on
Eternity, Heaven J.P. Meyer, The Northwestern Lutheran, August 22, 1954, Vol. 41, # 17
to April 14, 1957, Vol. 44, #8
"How you Can Have Eternal Life" Jack Graham, PowerPoint Ministries, Christianity.com
Got Eternal Life? Got Questions Ministries
Immortality Taoist essay, personaltao.com
The Trial to Conquer Death Ancient Scientific Yoga – The First Atom's Final Attempt
[6] A review by Dr. Peter Fenwick of the book Human Immortality by Mohammad Samir
Hossain