Abstract
This paper presents a comparative analysis of three works of rDzogs chen (Great Perfection). These works are associated with two religious traditions of Tibet.
One text belongs to Bon and another two to Buddhism. The Bon text is called dGos 'dod gsal byed bshad gzhi'i mchong (Subchapter: Fundamental Explanation for Everything that is Desired and Needed) and attributed to the eighth century Dran pa Nam mkha' (763-?).
The Buddhist texts are rDzogs pa chen po tshig don bcu gcig pa (The Eleven Themes of rDzogs chen) written by Nyi ma 'Bum (1158-1213) and Tshig don bcu gcig pa (The Eleven Themes) ascribed to Klong chen Rab 'byams (1308-1364). The authors of both works are traditionaly associated with the rNying ma school of Buddhism.
All three texts are thus assumed to be written by different authors in separate time periods, in the eighth, twelfth and fourteenth century. Yet the texts contain numerour parts which are either similar or even identical, and were apparently copied from one to another work.
This article thus aims to analyze and compare all three texts in order to show how differents parts could possibly migrate between the texts and in which order the texts could have been written.