Introduced and Translated by Jeffrey Hopkins with Dorje Yudon Yuthok.Snow Lion Publications, 1992. First Edition. Softcover. Octavo. 282pp, Illustrated wrappers, bibliography. From the publisher: "Presents in lucid detail the sixty-four arts of love divided into eight varieties of sexual play—embracing, kissing, pinching and scratching, biting, moving to and fro and pressing, erotic noises, role reversal, and positions of love-making. It is a translation of the Treatise on Passion by Gedun Chöpel, the highly controversial former monk. He gives titillating advice to shun inhibitions and explains how to increase female sexual pleasure. An overarching focus is sexual ecstasy as a door to spiritual experience—the sky experience of the mind of clear light pervades the scintillating descriptions of erotic acts."