This commentary to the very sacred texts and meditation practices of the Dzogchen cycle of the Gongpa Zanghtal by Rigdzin Godem, the great terton (treasure finder) from Tibet, is know for its details and clarity and very high respected among Tibetan scholars of the Dzogchen tradition. The commentary is rarely available, only as an old wood print from Tibet. Tulku Tsultrim Zangpo is highly respected and also H.H. the 14th Dalai Lama speaks in great honour of his writings. The contained teachings are kept very sacred and secret among Tibetans and an introduction through a highly qualified master of the lineage is obligatory. It contains the highest peak of the Tibetan meditation and should be read only by the serious practitioner who is ready for these teachings. In Tibetan it is quiet common for other people just to keep the text on the altar for reverence.