Occultism & Parapsychology Encyclopedia:
Zos Kia Cultus
The system of magic developed by occult artist Austin Osmond Spare, involving a complete symbolism of form, sound, desire, and will, deriving from sexual energy. Zos was not only Spare's magic name but also a symbol of the body as a whole, which could project desires and modify the world of matter. The primary practitioner of the system in the United States is Michael Bertiaux, head of the Monastery of the Seven Rays.
Sources:
Grant, Kenneth. Cults of the Shadow. New York: Samuel Wiser, 1976.
