"Mirror of Light introduces Yuthok Yonten Gonpo's teachings on Ati Yoga (Dzogchen) to English readers for the first time. Ati Yoga, or ""utmost yoga,"" is the pinnacle of Vajrayana practice, offering a simple, direct, and profound way to uncover the primordial wisdom that is our true nature. In this clear and accessible commentary, Dr. Nida Chenagtsang seamlessly blends Yuthok's root text with insights from Tibet's great meditation masters. He guides us to recognize the vast, sky-like nature of our mind, unobstructed by emotional clouds. Volume One offers not just theory but practical instruction in Ati Yoga's foundational practices and trekchod (""cutting through hardness""), ancient techniques that lead to a fresh, confusion-free awareness beyond dualistic thinking.

My respected teacher and dear friend, Dr Nida Chenagtsang, is a force of nature - of the nature of the kindness that is the inclination of human beings... I will cherish this work and read it again and again, and hopefully some day, some future life perhaps, will actually realize its deep and astonishingly exquisite meaning. ank you Yuthok Yonten Gonpo, Elder and Younger! ank you Dr Nida!"" - Professor Robert A.F. Thurman"