Man is a thinking center, capable of originating thought; and as he does not know everything, he makes mistakes and thinks error. Not knowing everything, he believes things to be true which are not true. Man holds in his thought the idea of diseased and abnormal functioning and conditions, and so perverts the action of the Principle of Health, causing diseased and abnormal functioning and conditions within his own body. In the Original Substance there are held only the thoughts of perfect motion; perfect and healthy function; complete life. God never thinks disease or imperfection. But for countless ages men have held thoughts of disease, abnormality, old age, and death; and the perverted functioning resulting from these thoughts has become a part of the inheritance of the race. Our ancestors have, for many generations, held imperfect ideas concerning human form and functioning; and we begin life with racial sub-conscious impressions of imperfection and disease. This is not natural, or a part of the plan of nature. The purpose of nature can be nothing else than the perfection of life. This we see from the very nature of life itself. It is the nature of life to continually advance toward more perfect living; advancement is the inevitable result of the very act of living. Increase is always the result of active living; whatever lives must live more and more. The seed, lying in the granary, has life, but it is not living. Put it into the soil and it becomes active, and at once begins to gather to itself from the surrounding substance, and to build a plant form. It will so cause increase that a seed head will be produced containing thirty, sixty, or a hundred seeds, each having as much life as the first. Life, by living, increases. Life cannot live without increasing, and the fundamental impulse of life is to live. It is in response to this fundamental impulse that Original Substance works, and creates. God must live; and he cannot live except as he creates and increases. In multiplying forms, He is moving on to live more. The universe is a Great Advancing Life, and the purpose of nature is the advancement of life toward perfection; toward perfect functioning. The purpose of nature is perfect health. The purpose of Nature, so far as man is concerned, is that he should be continuously advancing into more life, and progressing toward perfect life; and that he should live the most complete life possible in his present sphere of action. This must be so, because That which lives in man is seeking more life.