"Johnson's magnum opus, now published as The Path of the Masters: The Science of Surat Shabd Yoga: The Yoga of the Audible Life Stream (but originally titled The Path of the Masters: The Science of Sūrat Shabda Yoga: Santon kī Shikshā) is the most comprehensive, explicit, systematically organised, meticulous, and polished work on the Path of the Soundstream and Lightstream in any language, incomparable in its lucidity, and its near perfection marred only by racist undertones."--Wikipedia.