If man has nothing to eat, fasting is the most intelligent thing he can do. If, for instance, Siddhartha had not learned to fast, he would have had to seek some kind of work today, either with you, or elsewhere, for hunger would have driven him. But as it is, Siddhartha can wait calmly. He is not impatient, he is not in need, he can ward off hunger for a long time and laugh at it. Therefore, fasting is useful, sir.