Generally, anna means foodstuff, and another technical meaning of anna—anna means grains, which is produced from the land for eating of the human being. For human being, so many things are produced from the land: the grains, the fruits, the vegetables, so many things. They are meant for human being. The grains are not meant for the tigers. The grains are meant for the human being. The fruits are meant for the dogs. The fruits are meant for the human being. The milk. The milk is produced by the cow, but it is not meant for the cow. It is meant for the human being. If you offer the milk, 30 pounds of milk, after milking the cow, and if you offer to the cow, it will refuse. It will refuse, "I don't want it." Give it dry grass? Oh, it will be very glad. It will be very glad. So everything is organized by the nature.
Now, there are so many scientists. They are discovering vitamin value from foodstuff. Now, what is the vitamin value in the dry grass? Can any scientist say that this is the vitamin value in dry grass? If there is no vitamin value in dry grass, how the cow is producing so much milk, who is full of vitamins A and D? How, from dry grass, vitamins coming out? Nowadays the physician prescribes some artificial vitamins for maintaining your body.