Yoga Sutra 48

Sutra 48

From then on the sadhaka is undisturbed by dualities.

The Bible says nothing about asana or practicing anything in order to train our minds and bodies to focus and study him. In this sutra, Iyengar is saying that Patanjali says the point of asana is to put an end to dualities within our body, mind, and souls. That no pairs of opposites can exist for the yogi who has perfected asana, we become one- body, mind, and soul.