What is Buddhism? Public lecture, Los Angeles, USA, 28 June 1975. Archive number 206001.
The Purpose of Meditation. Public lecture, Los Angeles, USA, 28 June 1975. Archive number 206002.
Compassion and Emptiness. Public lecture, Deer Park Buddhist Center, Madison, Wisconsin, USA, 24 August 1975. Archive number 348001.
The Yoga Method of Buddha Maitreya. Maitreya Institute, Bruchem, Holland, September 1981. Archive number 354001.
Appendix 1: From Avalokiteshvara commentary, Tushita Mahayana Meditation Center, New Delhi, 6 November 1981. Archive number 649002.