Dongpeng Rinpoche of the Xiaqiong Mahayana Buddha-Dharma Changlong Zhou Monastery issued a document stating that The Supreme and Unsurpassable Mahamudra of Liberation written by H.H. Dorje Chang Buddha III is the essence of all Buddha-dharma that has existed since beginning of history, is Buddha-dharma that leads to rapid perfection of wisdom and liberation, is a supreme dharma treasure, and is unparalleled!