Think light! Try to impart a feeling of lightness to the body. Think light. This can be achieved by mentally extending yourself outwards from the centre of the body, i.e., think tall. Think not just of raising your arms but of extending them outwards and when you are holding them still, think again of reaching still further away from your body. Do not think of yourself as a small compressed suffering thing. Think of yourself as graceful and expanding - no matter how unlikely it may seem at the time.
B.K.S. IyengarYou must fill every inch of your body with the asana from your chest and arms and legs to the tips of your fingers and toes so that the asana radiates from the core of your body and fills the entire diameter and circumference of your limbs. You must feel your intelligence, your awareness, and your consciousness in every inch of your body.
B.K.S. Iyengar