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. IyengarWhen the restlessness of the mind, intellect and self is stilled through the practice of Yoga, the yogi by the grace of the Spirit within himself finds fulfillment.
B.K.S. IyengarFaith, courage, and intelligent and uninterrupted awareness - these qualities are to be present whether one is wide awake, half asleep, or in deep slumber. An individual who lives like this performs his daily actions with a mind free from selfishness. This is poise in action. And this poise leads to that serenity which is in the truest sense a healthy mind in a healthy body.
B.K.S. IyengarIn order to find out how to reveal our innermost Being, the sages explored the various sheaths of existence, starting from body and progressing through mind and intelligence, and ultimately to the soul. The yogic journey guides us from our periphery, the body, to the center ofour being, the soul. The aim is to integrate the variouslayers so that the inner divinity shines out as through clear glass.
B.K.S. Iyengar