Consequently he thought by mistake that he was affected by the changes of each stage. But now he realizes that his real individuality always remained unaffected. He sees that his true individuality shines always in the same manner, although the limiting adjuncts may vary. As the light of a lamp appears of different colors, if it passes through glasses of different colors, so the light of the true individual appears as animal or human when it passes through the animal or human nature of the subtle body. The subtle body of an individual changes from animal nature through moral and spiritual into divine. As this gradual growth cannot be expected in one life we shall have to admit the truth of Reincarnation, which teaches gradual evolution of the germ of life or the individual soul through many lives and various forms. Otherwise the theory of Evolution will remain imperfect, incomplete and purposeless. The doctrine of Reincarnation differs from the accepted theory of Evolution in admitting a gradual but continuous evolution of the subtle body through many gross forms. The gross body may appear or disappear, but the subtle body continues to exist even after the dissolution of the gross body and re-manifests itself in some other form. The theory of Reincarnation when properly understood will appear as a supplement to the theory of Evolution. Without this most important supplement the Evolution theory will never be complete and perfect. Evolution explains the process of life, while Reincarnation explains the purpose of life. Therefore, both must go hand in hand to make the explanation satisfactory in every respect. James Freeman Clarke says: "That man has come up to his present state of development by passing through lower forms, is the popular doctrine of science to-day. What is called Evolution teaches that we have reached our present state by a very long and gradual ascent from the lowest animal organizations. It is true that the Darwinian theory takes no notice of the evolution of the soul, but only of the body. But it appears to me that a combination of the two views would remove many difficulties which still attach to the theory of natural selection and the survival of the fittest. If we are to believe in Evolution let us have the assistance of the soul itself in this development of new species. Thus science and philosophy will co-operate, nor will poetry hesitate to lend her aid." (P. 190, "Ten Great Religions," II.) Evolution of the body depends upon the evolution of the germ of life or the individual soul. When these two are combined the explanation becomes perfect.