Physical Body is made up of five elements earth, water, fire, air and space, which is constantly nourished by food. Food comes from earth. Be alert when eating as it is circulating in the body and makes the blood, bone and marrow to be strong. Eating pure food makes the physical body light and strong. When you feel that the body has become heavy and lethargy do not eat for some time, till your body becomes light. Always eat right quality and right quantity of food with awareness.