A scientist sets out to conquer nature through knowledge - external nature, external knowledge. By these means he may split the atom and achieve external power. A yogi sets out to explore his own internal nature, to penetrate the atom (atma) of being. He does not gain dominion over wide lands and restless seas, but over his own recalcitrant flesh and febrile mind.
B.K.S. IyengarIn backbends, one touches the body physically, mentally, intellectually, consciously and spiritually everywhere.
B.K.S. IyengarChange leads to disappointment if it is not sustained. Transformation is sustained change, and it is achieved through practice.
B.K.S. Iyengar