Shamanism

"Shamanism is classified by anthropologists as an archaic magico-religious phenomenon in which the shaman is the great master of ecstasy. Shamanism itself, was defined by the late Mircea Eliade as a technique of ecstasy. A shaman may exhibit a particular magical specialty (such as control over fire, wind or magical flight). When a specialization is present the most common is as a healer. The distinguishing characteristic of shamanism is its focus on an ecstatic trance state in which the soul of the shaman is believed to leave the body and ascend to the sky (heavens) or descend into the earth (underworld). The shaman makes use of spirit helpers, with whom he or she communicates, all the while retaining control over his or her own consciousness. (Examples of possession occur, but are the exception, rather than the rule.) It is also important to note that while most shamans in traditional societies are men, either women or men may and have become shamans."

-- Dean Edwards, SRS FAQ 1.1.2