The Yoga Sutras of Patañjali is a collection of Sanskrit sutras (aphorisms) on the theory and practice of yoga - 195 sutras (according to Vysa and Krishnamacharya) and 196 sutras (according to other scholars including BKS Iyengar). The Yoga Sutras was compiled in the early centuries CE, by the sage Patanjali in India who synthesized and organized knowledge about yoga from much older traditions.