The Science of Reincarnation. Life does not begin with birth or end with death. Exactly what happens to the self after leaving its present body? Does it enter another body? Must it reincarnate forever? How does reincarnation really work? Can we control our future incarnations? Coming Back answers these most profound and mysterious of all questions by presenting clear and complete explanations from the world%u20AC%u2122s most authentic, timeless sources of knowledge about afterlife.