"In his first major book, His Eminence Zurmang Gharwang Rinpoche, the head of the Zurmang Kagyu lineage of Tibetan Buddhism, unpacks the marrow of a crucial teaching. The Ocean of Definitive Meaning by the 9th Karmapa is considered to be the most definitive Mahamudra text ever written. Bokar Rinpoche, a close student of Kalu Rinpoche and the chief retreat master for the Karma Kagyu lineage under the 16th Karmapa, wrote a remarkable distillation of the 9th Karmapa's detailed and comprehensive book: A Concise Commentary on the Ocean of Definitive Meaning: Easy-to-Implement Root Verses for Unlocking the Door to the Definitive Meaning. This essentialized text is the go-to manual for advanced Mahamudra practitioners; the 16th Karmapa recommended that experienced students use it while in retreat. Now, His Eminence Zurmang Gharwang Rinpoche offers illuminating commentary on Bokar Rinpoche's pithy teaching, expanding and unlocking it for the reader, showing us the way to understand the very nature of our own minds"--