Monopsychism
From Wikipedia, the free encyclopedia
Monopsychism is the belief that all humans share one and the same eternal soul, mind or intellect. It is a recurring theme in many mystical traditions.
Monopsychism is a doctrine of Buddhism, Sibghatullah, Jewish Kabbalah and Averroism, and is also a part of Rastafarian beliefs. A similar belief in some mystical Jewish and Christian traditions is that all human beings have different souls but once composed a single unified soul in Adam.

