"This is a modern commentary on a Dzogchen tantra titled The Natural Freedom and Openness of the Mind, covering the practices of trekcho, thogal, and bardo. This tantra is a mind terma, or treasure, of the contemporary terton, or treasure revealer, Deshek Lingpa (1956-2020). The tantra is said by tradition to be one among many revelations of the seventh-century Indian master Garab Dorje, who received them directly from the bodhisattva Vajrasattva, who received them from the buddha Samantabhadra. The commentary presents, in clear and accessible language, the approach to enlightement taught in this tradition. These instructions are considered advanced and secret, to be taught only to those who have received transmission from a qualified master. For the curious reader outside of the tradition, this book offers a clear and concise introduction to way the Nyingma tradition frames Buddhist cosmology, mind, liberation, and prayer"--