Trungpa Rinpoche gave two seminars on Zen and Tantra, the first in January 1974 at Karme Chöling, and the second in February 1974, at the Harvard Divinity School. These talks have been edited into The Teacup and the Skullcup, with an introduction by Acharya David Schneider.
This seminar was videotaped by early sangha member Jeffrey Krouk, who recorded twenty four talks by Trungpa Rinpoche in 1973 and 1974. Jeff has since donated these original videos to the Shambhala Archives. Thank you to Jeff Krouk and to the Shambhala Archives for making this historic material available.