The Kagyu school of Tibetan Buddhism began in the 11th century with such renowned figures as Marpa and Milarepa, and it continues today with the Karmapa and several best-selling authors, including Pema Chodron and Chogyam Trungpa. Mahamudra, the "Great Seal," is a central teaching of the Kagyu school, along with the so-called six dharmas of Naropa. Formulated as a systematic practice by Gampopa (1079-1153), the mahamudra teachings trace their source to earlier Indian materials and focus on the cultivation of profound insight into the nature of the mind.

Peter Alan Roberts was born in Wales and lives in Hollywood, California. He earned a BA in Sanskrit and Pali and a DPhil in Tibetan Studies from Oxford University (Harris-Manchester College). For more than thirty years he has been working as an interpreter for lamas and as a translator of Tibetan texts. He specializes in the literature of the Kagyu and Nyingma traditions with a focus on tantric practices, and he is the author of The Biographies of Rechungpa.