Now this may seem an extremely abstract conception and one with which we have no practical concern. I fancy I can hear the reader saying "The Lord only knows how the world started, and it is His business and not mine," which would be perfectly true if this originating faculty were confined to the Cosmic Mind. But it is not, and the same action takes place in our own minds also, only with the difference that it is ultimately subject to that principle of Cosmic Unity of which I have already spoken. But, subject to that unifying principle, this same power of origination is in ourselves also, and our personal advance in evolution depends on our right use of it; and our use of it depends on our recognition that we ourselves give rise to the particular polarities which express themselves in our whole world of consciousness, whether within or without. For these reasons it is very important to realize that Evolution is not the same as Creation. It is the unfolding of potentialities involved in things already created, but not the calling into existence of what does not yet exist--_that_ is Creation. The order, therefore, which I wish the student to observe is, first the Self-contemplation of Spirit producing Polarity, and next Polarity producing Manifestation in Form--and also to realize that it is in this order his own mind operates as a subordinate center of creative energy. When the true place of Polarity is thus recognized, we shall find in it the explanation of all those relations of things which give rise to the whole world of phenomena; from which we may draw the practical inference that if we want to change the manifestation we must change the polarity, and to change the polarity we must get back to the Self-contemplation of Spirit. But in its proper place as the root-principle of all _secondary_ causation, Polarity is one of those fundamental facts of which we must never lose sight. The term "Polarity" is adopted from electrical science. In the electric battery it is the connecting together of the opposite poles of zinc and copper that causes a current to flow from one to the other and so provides the energy that rings the bell. If the connection is broken there is no action. When you press the button you make the connection. The same process is repeated in respect of every sort of polarity throughout the universe. Circulation depends on polarity, and circulation is the _manifestation_ of Life, which we may therefore say depends on the principle of polarity. In relation to ourselves we are concerned with two great polarities, the polarity of Soul and Body and the polarity of Soul and Spirit; and it is in order that he may more clearly realize their working that I want the student to have some preliminary idea of Polarity as a general principle.