Oral Instructions of Yongdzin Lopon Tenzin Namdak Rinpoche on / Innermost Essence of Kuntuzangpo (also known as Heart Drops of Dharmakaya) by Shardza Trashi Gyaltsen extracted and edited by Carol Ermakova and Dmitry Ermakov. This booklet is a perfect reading companion to Gyaltsen, Shardza Tashi. Commentary by Lopon Tenzin Namdak, Heart Drops of Dharmakaya: Dzogchen Practice of the B?n Tradition (Ithaca: Snow Lion Publications, 1993).