A concise description of the essentials features of three rDzogs-chen empowernments related to the experience of pristine cognitivity, Text acquired in Tibet by HRH Prince Peter of Greece and Denmark (1908-1980), Ritual text recovered by the ger ston rGod kyi ldem 'phru can og Catalogue of Tibetan manuscripts and xylographs by Hartmut Buescher and Tarab Tulku. Copenhagen: Curzon – Det Kongelige Bibliotek, 2000. Vol. 2. p. 655