The work provides a detailed ethnographic account of a late nineteenth-century indigenous prophetic movement, tracing its roots in earlier native prophets, describing doctrines and ceremonies of contemporary messianic leaders, and documenting songs, ritual objects, and dance practices. It analyzes how the movement spread across regions, created tensions with United States authorities, and culminated in the violent Sioux crisis of 1890. The author compiles testimony, official reports, and visual material, compares the movement with other religious revivals and trance practices, and includes appendices with song texts, ethnographic notes, and firsthand statements on causes and aftermath.