David Christopher Lane began researching Eckankar as an undergraduate in 1978 and published The Making of a Spiritual Movement in 1983. He documented Twitchell's membership of Swami Premananda's Self-Revelation Church and of Kirpal Singh's Ruhani Satsang, his later editing of his own published articles to remove those teachers' names, and several hundred passages in The Far Country and other works taken with little alteration from Julian Johnson's The Path of the Masters. Eckankar's response has been that the teaching's value is independent of its founder's biography, and that a genuine ancient current will surface in more than one place. The textual findings themselves have not been rebutted.