“All the important texts on yoga lay great emphasis on sadhana or abhyasa (constant practice). Sadhana is not just a theoretical study of yoga texts. It is a spiritual endeavor. Oil seeds must be pressed to yield oil. Wood must be heated to ignite it and bring out the hidden fire within. In the same way, the sadhaka must by constant practice light the Divine flame within himself.”
—B.K.S. Iyengar