All cultures have shamans, who go by different names.
A shaman must be able to convince those he lives amongst that his experiences are real, and his guidance valid, or his stature quickly falls. Therefore, shamans in the main are having real experiences that are somewhat familiar, if only in part, to other humans. There are seldom fake shamans, and then not for long. A shaman is a human who refuses to deny what his intuition is telling him, and thus communicates with entities he cannot see or hear or capture for exhibition, as in a cage. He may attempt to incarnate, briefly, into other humans, or animals of various types, but he seldom gets permission to do any of this.