what was the purpose of the ghost dance performed by some of the native american tribes in the late 19th century

Answer:Ghost Dance, either of two distinct cults in a complex of late 19th-century religious movements that represented an attempt of Indians in the western United States to rehabilitate their traditional cultures. Both cults arose from Northern Paiute prophet-dreamers in western Nevada who announced the imminent return of the dead (hence "ghost"), the ousting of the whites, and the restoration of Indian lands, food supplies, and way of life. These ends, it was believed, would be hastened by the dances and songs revealed to the prophets in their vision visits to the spirit world and also by strict observance of a moral code that resembled Christian teaching and forbade war against Indians or whites. Many dancers fell into trances and received new songs from the dead they met in visions or were healed by Ghost Dance rituals.

To bring the saviors to free the tribes from white Americans

Explanation:

The Ghost Dance was a new religious movement incorporated into numerous Native American belief systems. According to the teachings of the Northern Paiute spiritual leader Wovoka, proper practice of the dance would reunite the living with spirits of the dead, bring the spirits to fight on their behalf, make the white colonists leave, and bring peace, prosperity, and unity to Native American peoples throughout the region.