Photo by @argonautphoto (Aaron Huey) #TranceDance, still practiced by San communities in the #Kalahari region, is a indigenous ritual by which a state of altered consciousness is achieved through rhythmic dancing and hyperventilation. The trance dance experiences of San #shaman are believed to be recorded by southern African rock art. #onassignment in the #Makgadikgadi SaltPans of Botswana for @natgeotravel. Follow @argonautphoto for more Botswana photos!