One's spiritual realization lies in none other than how one walks among and interacts with one's fellow beings.

Yes, flexibility of body and physical perfection for Yogasana is important. However more important is the state of your mind, Meditative mind. Your flexibility might be excellent but if your mind is not attentive, you are merely doing some physical exercise, not Yoga.

Willpower is nothing but willingness to do.

If you open the armpits, the brain becomes light. You cannot brood or become depressed.

As we shave it happens that we cut ourself with the razor blade; this does not mean that we must not shave in the morning any longer. It is the same thing for yoga.

When you cannot hold the body still, you cannot hold the brain still. If you do not know the silence of the body, you cannot understand the silence of the mind. Action and silence have to go together. If there is action, there must also be silence. If there is silence, there can be conscious action and not just motion.

The material body has a practical reality that is accessible. It is here and now, and we can do something with it. However, we must not forget that the innermost part of our being is also trying to help us. It wants to come out to the surface and express itself.