Shamanism — Medicine Men and PriestsThe evolution of religious observances progressed from placation, avoidance, exorcism, coercion, conciliation, and propitiation to sacrifice, atonement, and redemption. The technique of religious ritual passed from the forms of the primitive cult through fetishes to magic and miracles; and as ritual became more complex in response to man’s increasingly complex concept of the supermaterial realms, it was inevitably dominated by medicine men, shamans, and priests. In the advancing concepts of primitive man the spirit world was eventually regarded as being unre