"Buhlman has trained out-of-body travelers in his workshops for over a decade. On this "travel guide," he vividly recounts his own adventures in the parallel universes described in the latest physics theories and presents his step-by-step guide to astral travel. The four 60-minute cassettes include a hypnosis session, a sleep session, a guided visualization using brain synchronization technology, exercises, tips, techniques, answers to your questions and more."