Looking in & studying what cannot be seen from the outward eyes

 “For a yogi, backbends are meant to invert the mind, to observe and to feel, first the back, then the consciousness and the very seer. Through the practice of backbends, by using the senses of perception to look back, and drawing the mind to the back portions of the body, one day meditation comes naturally.” Yogācārya B.K.S. Iyengar