An exposition of the similarities and differences between Vajrayana Buddhism and Zen, by one of the twentieth century's greatest meditation teachers.The Teacup and the Skullcup is made up of edited transcripts from two seminars that Chögyam Trungpa gave near the beginning of his North American teaching career in 1974--one in Barnet, Vermont, and one in Boston--called "Zen and Tantra." Although Trungpa Rinpoche belonged to the tantra tradition, he acknowledged the stren