You know the known, so go a little into the unknown. The mind that is caught up in the known - extended a little beyond reason. The moment you go beyond , you move in the soul. Releasing the bondage of your mind to extend further, reach the unknown a little more. The further you go, you realize that the known is limited and the unknown is vast.
B.K.S. IyengarYoga is meant for the purification of body and its exploration as well as for the refinement of the mind.
B.K.S. Iyengar