The Yoga Sūtras of Patañjali are 196 Indian sūtras (aphorisms) that constitute the foundational text of Ashtanga Yoga, also called Raja Yoga. In medieval times, Ashtanga Yoga was cast as one of the six orthodox āstika schools of Hindu philosophy.The Yoga Sutras were compiled around 400 BCE by Patañjali, taking materials about yoga from older traditions. (Excerpt from Wikipedia)
