Un essai sur la vie et l enseignement du maître Omraam Mikhaël Aïvanhov, fondateur de la Fraternité blanche universelle. The Mystery of Light The Mystery of light is the first book-length account of the life and teaching of the Bulgarian-born spiritual adept Omraam Mikhaël Aïvanhov (1900-1986), who was one of the twentieth century s greastest luminaries of Western spirituality. He was a disciple of the saintly Peter Deunov (Beinsa Douno), modern Bulgaria s most remarkable spiritual figure. In 1937, at the behest of his teacher, Aïvanhov moved to France where he taught the timeless secrets of a universal gnosticism for nearly a half century. This book holds great appeal for seekers both within and outside established spiritual traditions.