All that one partakes of even physically, in the form either of food or intoxicant, has not only effect upon the body but upon the mind. Not only what the body partakes of, but also what the mind partakes of through the senses, has its influence on the body. For instance, all that one sees is impressed upon the mind. One cannot help it, it is mechanically done, that impression is recorded. All that one hears, smells, tastes, or touches, has not only its effect upon the body, but also upon the mind. That means that one's contact with the outer world is such that there is a continual mechanical interchange going on; every moment of one's life one is partaking of all that one's senses allow one to take in.