This lengthy work by a scholar of the Kadam school is the most authoritative Tibetan commentary on Vasubandhu’s Treasury of Abhidharma (Abhidharmakosa), a classic of Buddhist psychology and phenomenology.
In terms of stature and authority, Vasubandhu’s Treasury rivals Buddhaghosa’s contemporaneous Theravada classic The Path of Purification and deals with such central themes as the dynamics of emotions, the typology of mental states, the variety of meditative states, and karma and its diverse manifestations. Vasubandhu’s work also covers the Buddhist theory of the evolution of both the cosmos and the life within.
Chim Jampalyang’s exposition of this important Buddhist classic is the greatest flowering of Abhidharma studies in Tibet. To this day this monumental work is used as a key textbook in the great monastic universities. It is a veritable encyclopedia, covering all areas of classical Indian Buddhist knowledge.