Whenever asana is done mechanically from the front brain, the action is felt only on the peripheral body, and there is no inner sensation, there is no luminous inner light. If the asana is done with continual reference to the back of the brain, there is a reaction to each action, and there is sensitivity. Then life is not only dynamic, but it is also electrified with life force.
B.K.S. IyengarIn Savasana or in meditation, the light of the eyes is drawn towards the lotus of the heart, so that the seat of the intelligence of the head is brought into contact with the seat of the intelligence of the heart, which is called the mind. Thus one passes from the individualistic state of consciousness to the universal state of consciousness. It is the merging of the intellect of the brain with the intellect of the soul.
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