Fact: All religion in this planet has a certain salvation concept.
Many religions express the beliefs that have been held concerning the original state of mankind in the divine ordering of the universe. Many of these myths envisage a kind of Golden Age at the beginning of the world, when the first human beings lived, serene and happy, untouched by disease, aging, or death and in harmony with a divine Creator.
For example, Zoroaster, the founder of Zoroastrianism, called upon men to align themselves with the good, personified in the god Ahura Mazda, because their ultimate salvation lay in the triumph of the cosmic principle of good over evil, personified in Ahriman. This salvation involved the restoration of all that had been corrupted or injured by Ahriman at the time of his final defeat and destruction.
In those religions that regard man as essentially a psychophysical organism, salvation involves the restoration of both the body and soul. Such religions therefore teach doctrines of a resurrection of the dead body and its reunion with the soul, preparatory to ultimate salvation or damnation. This is the type of salvation offered by Christianity. This is really a typical idea...Because death has been universally feared but rarely accepted as a natural necessity, the mythologies of many peoples represent the primeval ancestors of mankind as having accidentally lost, in some way, their original immortality.
But this concept of salvation is not a Christian invention. In the Pyramid Texts (c. 2400 BCE), the dead Pharaoh seeks to fly up to heaven and join the sun-god Ra on his unceasing journey across the sky, incorporated, thus, in a mode of existence beyond change and decay. A passage in the later Book of the Dead (1200 BCE) represents the deceased, who has been ritually identified with Osiris, declaring that he comprehends the whole range of time in himself, thus asserting his superiority to it.
In contrast, some religions have taught that the body is a corrupting substance in which the soul is imprisoned (e.g., Orphism, an ancient Greek mystical cult; Hinduism; and Manichaeism, an ancient dualistic religion of Iranian origin). According to the Hindu philosophical system known as Advaita Vedanta, a primordial ignorance (avidya) originally caused souls to mistake the empirical world for reality and so become incarnated in it. By continuing in this illusion, they are subjected to an unceasing process of death and rebirth (samsara) and all of its consequent suffering and degradation. In Buddhism, a primordial ignorance (avijja) also started the "chain of causation" (paticcasamuppada) that produces the infinite misery of unending rebirth in the empirical world.