You must be able to get up with the same ease with which you sat to have your food. If you sit down feeling light and feel heavy and difficult to get up after eating, you have taken more than you need and it will develop Tamasik qualities. The space in your stomach is divided into four parts. Youngsters should fill three parts of their stomach with food and remaining one part with water. For adults, two parts of stomach with food, one part for water and one part for air is advisable. If you fill all four parts with food with no place even for water, you are violating the rules for digestion! After having your lunch, rest for just ten minutes. That will help blood to circulate freely from your head to your toe. At night, after dinner, you must go for a walk. This is a sound routine for good health and to develop Satwik nature.

- Divine Discourse, 'My Dear Students', Vol 2, Ch 2.