Written to fill an existing gap in the current available knowledge on trance, prophesy, deity-possession, and mediumship within the neo-Pagan and Wiccan communities, Lifting the Veil was developed from Janet Farrar and Gavin Bone's personal work and public workshops on trance-prophesy and ecstatic ritual over the last 20 years. The book covers the history and modern practice of trance as well as the methods of practice, including ecstatic ritual, drawing down the moon, sex magic, and working with the spirits of the dead. It also explores the Four Keys, which include the importance of understanding mythical cosmology and psychology, understanding the role of energy in trance, the nature of spirits and deity, and understanding what trance is and the techniques involved. Because trance-prophesy is a very subjective process, the book includes descriptions of the personal experiences of others and transcriptions from several independent sessions by modern seers and priestesses.