Inside cleanliness is very important thing. If the bowel is not clear, if the stools are congested . . . the appendicitis disease, it means that those who are constipated, gradually inside their stool becomes dry, and it becomes a block to the intestine. So if it becomes too much blocked, if it is not possible to be cleared, then the modern medical science, they cut the abdomen and cut the part and clear it, and again stitch it. That is appendicitis, so far I know—I am not medical man. There are so many diseases that is due to this non clearance of the intestines. You see?
Therefore we have to eat in such proportion and such kind of food that inside intestines may remain always clear. In a Bengali proverb there is a saying that bhuri and muri. If your these two things are very clear, then there is no question of disease. Bhuri means this abdomen, and muri means this head. If you keep your head and the belly very clear, then you are free from all disease.
So the yoga process, by breathing exercise, by that dhokhi process, there are so many . . . by sitting posture, so many things—the whole thing is that keep the body very fit, brain clear, so that one can think of higher subject matter very nicely. And the more we eat nonsense things, which our nature cannot accept