You must do the asana with your soul. How can you do an asana with your soul? We can only do it with the organ of the body that is closest to the soul - the heart. So a virtuous asana is done from the heart and not from the head. Then you are not just doing it, but you are in it. Many people try to think their way into an asana, but you must instead feel your way into it through love and devotion
B.K.S. IyengarThe primary aim of yoga is to restore the mind to simplicity, peace, and poise, to free it from confusion and distress.
B.K.S. IyengarYour body exists in the past and your mind exists in the future. In yoga, they come together in the present.
B.K.S. Iyengar