A compendium of the teachings and rituals of a Pagan religious order - the Ordo Arcanorum Gradalis - based upon the Holy Grail legends. The book covers the teachings and concepts of the order, and contains a compilation of its sacramental rites and seasonal rituals.
Shadwynn does a beautiful job finding harmony between Christianity and Pagansim in the traditions and lore of the Holy Grail. His complete collection of rituals for the Wheel of the Year and Rites of Passion is rooted in a very thorough theological explanation of the various elements and how they fit together.
This book had a profound enough impact on me that I went through the training program and was ordained as a Grailpriestess. Even though I no longer identify as an adherent of this path, the teachings in this book have enriched my spiritual life.