The Yoga-system of Patañjali or the ancient Hindu doctrine of concentration of mind embracing the mnemonic rules, called Yoga-sūtras, of Patañjali and the comment, called Yoga-Bhāshya, attributed to Veda-Vyāsa and the explanation, called Tattva-Vāiçāradī, of Vāchaspati-Miçra - Patañjali Philosoph ca. v2. - 4. Jh (Harvard oriental series, 1914)