The Sun Dance, most critical religious function of the Plains Indians of North America and, for itinerant people groups, an event when generally autonomous groups assembled to reaffirm their fundamental convictions about the universe and the otherworldly through customs of individual and group give up. It is a service rehearsed diversely by a few North American Indian Nations, yet a significant number of the functions have highlights in like manner, including moving, singing and drumming, the experience of dreams, fasting, and, at times, self-torment. The Sun Dance was the most awesome and essential religious function of the Plains Indians of nineteenth century North America, customarily held by every tribe once per year normally at the season
