Read mrs. z. a. parker’s observations from 1890

 In the read passage, They raised their eyes to heaven, their hands clasped high above their heads, and stood straight and perfectly still, invoking the power of the Great Spirit to allow them to see and talk with their people who had died They would go as fast as they could, their hands moving from side to side. 

What is Parker describing in this quotation?

The answer is The ritualized movements of Sioux Indians during a Ghost Dance ceremony.

It will help you:)
(Brainliest answer please and verified answers).