If you can adapt to and balance in a world that is always moving and unstable, you learn how to become tolerant to the permanence of change and difference.
B.K.S. IyengarThe Yogi conquers the body by the practice of asanas, making the body a fit vehicle for the spirit. The Yogi knows that it is a necessary vehicle for the spirit, for a soul without a body is like a bird deprived of its power to fly.
B.K.S. Iyengar