Fries has, in thie book, written the definitive study of magical trance and possession techniques. The author is inspired by the Nordic tradition of Seidr, said to have been taught to the human race by Odin. The book provides an extensive survey of the manifestation of this technique through several related magical traditions, and is recommended highly for all practitioners interested in ritual trance, dance and physical ecstasy.
Oxford: Mandrake, 2010. Paperback, 343 pages. New. 4th impression with appendix.