This book provides an in-depth analysis of the doctrines of early Advaita and Buddhism that has important implications for the question of the relationship between Hindu and Buddhist thought. The author examines the central doctrines of the Gaudapadiya-karikain a series of chapters that discuss early Advaita in relation to the Abhidharma, Madhyamaka, and Yogacara schools of Buddhism. The question of the doctrinal diversity of Indian Buddhism is also discussed through an analysis of the concept of 'Buddha-Nature' and its relationship with Vedantic thought.