 Complete the following phrase:  Heȟáka Sápa, commonly known as Black Elk December 1, 1863  August 19, 1950, was a wičháša wakȟáŋ medicine man, holy man, heyoka of the Oglala Lakota people and educator about his culture. He was a second cousin of the war leader Crazy Horse and fought with him in the Battle of Little Bighorn. He survived the 