The seeker is thought to perform Asanas so that he becomes familiar with his body, senses and intelligence. He develops alertness, sensitivity, and the power of concentration. Pranayama gives control over the subtle qualities of the elements – sound, touch, shape, taste and smell. Pratyahara is the withdrawal into the mind of the organs of action and senses of perception. […]

The journey from yama to pratyahara, described in sadhana pada, ends in the sea of tranquility, which has no ripples […]