The author provides a detailed ethnographic account of a nine-day Navajo healing ceremonial called Yebitchai, recording the construction of the medicine lodge, the roles of personators and sweat houses, the making of masks, sacred reeds and prayer sticks, and the step-by-step sand paintings and rites performed on each day. The narrative interleaves ritual descriptions with collected myths that explain the gods and supernatural beings involved, including origin stories such as the creation of the sun. Illustrations and notes compare ceremonial elements and material paraphernalia with neighboring Pueblo practices while emphasizing the communal, theatrical, and curative aspects of the rites.