Many ask me whether pranayama ... postpones old age. Why worry about it? Death is certain. Let it come when it comes. Just keep working. The soul has no age. It doesn't die. Only the body decays. And yet, we must never forget the body, since it is the garden we must cherish and cultivate.
B.K.S. IyengarOne day you too may experience what I have experienced. So right away go and practise.
B.K.S. IyengarAs long as the body is not in perfect health, you think about it, and that prevents you from thinking of the mind. The sound mind is a sound body.
B.K.S. Iyengar