You can fast for three days, you can force your body to fast, but if it is repression, the fourth day the body will take revenge — you will eat too much, for a few days you will eat too much. In fact, if you had lost any weight in those three days, you will gain more weight within a week. The body has taken the revenge, the body has taught you a lesson. Fighting is not the way — not the way of the buddhas. Fighting is stupid; it is your own body, you need not fight with it, you have just to be more watchful of it. If some watchfulness starts crystallizing in you, you will be surprised that the body starts following you. It no longer commands you, it no longer orders you: it becomes obedient to you.