YS II 28: yogaan.gaanuSThaanaad ashuddhikSaye jñaanadiiptir aa vivekajñaateH. ( yoga-an.ga-anuSThaanaat; ashuddhi-kSaye jñaana-diiptiH; aa vivekajñaateH.) Alistair Shearer's "TMish" translation: The distinction between pure consciousness and the world is revealed by the light of knowledge, when the nervous system has been purified by the practice of yoga. "Sketchy" word-for-word : yoga-limb-following-from impurity-destruction-in knowledge-radiance till* discrimination-knowledge. * This is one of the rare instances where a *genuine* preposition (aa = till, etc.) appears in the YS!