Which Native American religious ceremony from the Great Plains is now practiced away from outsiders-with no cameras or audio recordings allowed-to respect and protect traditional ways?

Sun Dance

Explanation:

The Sun Dance is a religious ceremonial practice of the Native American in the Plains. The Sun Dance include praying, dancing, singing, a sacred fire, and drumming. The Sun Dance symbolizes the honor to the sun and to demonstrate the bravery of the dancers by overcoming pain, cutting themselves along with fasting. Cameras and audio recording are forbidden in some of the Sun Dance prayers and ceremony, as Indians believes by getting exposure, the Great spirits leave from the ceremony.