Metempsychosis is a theory of the soul derived from the teachings of Pythagoras, who may have based his ideas on the Indian concept of reincarnation. In metempsychosis, the soul is immortal and passes through cycles of incarnation in birth and release from the body at death.                                                                     https://www.english.hawaii.edu/criticalink/plato/terms/metem.html#:~:text=Metempsychosis%20is%20a%20theory%20of,from%20the%20body%20at%20death.