Claimed to be the Tibetan lama guide of Paul Twitchell, founder of the religious organization ECKANKAR promoting "the ancient science of soul travel," a kind of out-of-the-body travel or astral projection to other planes. Researcher David Christopher Lane raised serious questions about the existence of "Rebazar Tarzs."
Lane, David Christopher. The Making of a Spiritual Movement. Del Mar, Calif.: Del Mar Press, 1983.