The Lama Yeshe Wisdom Archive (LYWA) is the collected works of Lama Thubten Yeshe and Kyabje Lama Thubten Zopa Rinpoche. The Archive was founded in 1996 by Lama Zopa Rinpoche, its spiritual director, to make available in various ways the teachings it contains. This book is a slightly more than lightly edited, day by day transcript of Lama Zopa Rinpoche's teachings at a three-month Vajrasattva retreat held at Land of Medicine Buddha, from February 1 to April 30, 1999.