Reincarnation, also known as rebirth or transmigration, is the philosophical or religious concept that the non-physical essence of a living being begins a new life in a different physical form or body after biological death. Resurrection is a similar process hypothesized by some religions, in which a soul comes back to life in the same body. In most beliefs involving reincarnation, the soul is seen as immortal and the only thing that becomes perishable is the body. Upon death, the soul becomes transmigrated into a new infant (or animal) to live again. The term transmigration means passing of soul from one body to another after death.
Reincarnation (Punarjanma) is a central tenet of the Indian religions such as Buddhism, most Hinduism, Jainism, Sikhism and most Paganism, although there are Hindu and Pagan groups who do not believe in reincarnation, instead believing in an afterlife. In various forms, it occurs as an esoteric belief in many streams of Judaism in different aspects, in some beliefs of the Indigenous peoples of the Americas, and some Indigenous Australians (though most believe in an afterlife or spirit world). A belief in rebirth/metempsychosis was held by Greek historical figures, such as Pythagoras, Socrates, and Plato, as well as in various modern religions.