Do not allow past experiences to be imprinted on your mind. Perform asanas each time with a fresh mind and with a fresh approach. If you are repeating what you did before, you are living in the memory, so you are living in the past. That means you don't want to proceed beyond the experience of the past. Retaining that memory is saying, 'Yesterday I did it like that.' When I ask, 'Is there anything new from what I did yesterday?' then there is progress. Am I going forward or am I going backward? Then you understand how to create dynamism in a static asana.
B.K.S. IyengarWhen the asana is correct, there is lightness, a freedom. Freedom comes when every part of the body is active. Let us be free in whatever posture we are doing. Let us be full in whatever we do.
B.K.S. IyengarYou must be as joyful when you fail again and again as you are joyful when you succeed. It is often when you fail that you move toward the goal without being aware of it. You must feel joy even when you have not fully succeeded but only moved toward achievement of your goal.
B.K.S. IyengarSometimes our body is willing, but our mind is weak. Sometimes our mind is willing, but our body is weak. Do not be afraid. Strive to extend your capacity but do not be disappointed with yourself. What does not challenge us, cannot change us.
B.K.S. Iyengar