A god and a demon went to learn about the Self from a great sage. They studied with him for a long time. At last the sage told them, "You yourselves are the Being you are seeking." Both of them thought that their bodies were the Self. They went back to their people quite satisfied and said, "We have learned everything that was to be learned; eat, drink, and be merry; we are the Self; there is nothing beyond us." The nature of the demon was ignorant, clouded; so he never inquired any further, but was perfectly contented with the idea that he was God, that by the Self was meant the body. The god had a purer nature. He at first committed the mistake of thinking: I, this body, am Brahman: so keep it strong and in health, and well dressed, and give it all sorts of enjoyments. But, in a few days, he found out that that could not be the meaning of the sage, their master; there must be something higher. So he came back and said, "Sir, did you teach me that this body was the Self? If so, I see all bodies die; the Self cannot die." The sage said, "Find it out; thou art That." Then the god thought that the vital forces which work the body were what the sage meant. But. after a time, he found that if he ate, these vital forces remained strong, but, if he starved, they became weak.