Reincarnation is the religious or philosophical concept that the soul or spirit, after biological death, can begin a new life in a new body. This doctrine is a central tenet of the Indian religions. It is also a common belief of various ancient and modern religions such as Spiritism, Theosophy, and Eckankar, and is found as well in many tribal societies around the world, in places such as Siberia, West Africa, North America, and Australia.
Although the majority of sects within the Abrahamic religions of Judaism, Christianity, and Islam do not believe that individuals reincarnate, particular groups within these religions do refer to reincarnation; these groups include the mainstream historical and contemporary followers of Kabbalah, the Cathars, the Druze and the Rosicrucians. The historical relations between these sects and the beliefs about reincarnation that were characteristic of Neoplatonism, Orphism, Hermeticism, Manicheanism and Gnosticism of the Roman era, as well as the Indian religions, has been the subject of recent scholarly research.
In recent decades, many Europeans and North Americans have developed an interest in reincarnation. Contemporary films, books, and popular songs frequently mention reincarnation.
Example video: Ram Dass - Seasons of Our Lives - Full Lecture
Example via www.ramdass.org: Seasons of our Lives – Ram Dass