What is the name of the ceremony that contains the Yeibichai songs? What is the purpose of the ceremony? What are some of the features?

Answer and explanation:

The Navajo ceremony that contains the Yeibichai songs is called Nightway ceremony.

The purpose of the ceremony is is to cure a sick person by aligning that person with the healing forces of nature.

Some of the features of the ceremony are: songs, chants, dances, sand paintings, and purification practices. It is a complex ceremony that lasts nine nights. Masked dancers become deities while the sick person becomes the hero in a mythic retelling.