Samding Dorje Phagmo Vimalaprabhā is a Sanskrit word that means "The Radiance of Purity", or "Drimé Ö" (Tibetan: དྲི་མེད་འོད།, Wylie: dri med ‘od).
It is one of the three major commentaries on Kālacakra system, along with Hevajrapindarthatika and Laksabhidhana duddhrta laghutantra pindartha vivarana nama.
[4] This combined by the text's statement that "Muhammad is the incarnation of al-Rahman" and the teacher of the barbarian dharma (religion), states Newman, suggests that the 403 year must be in the era of Hijra, or equal 1012-1013 CE.
[7] In other sections it calls Muslims as enemies or mlecchas, assertions that have led scholars to date the text after the 10th-century Islamic invasions of regions inhabited by Buddhist monks.
The Vimalaprabhā mentions, says James Mallinson, that Hatha yoga brings about an "unchanging moment through the practice of nāda by forcefully making the breath enter the central channel and through restraining the bindu of the bodhicitta in the vajra of the lotus of wisdom".