The next thing is that since in the beginning there is nothing except Spirit, its primary feeling of aliveness must be that of being alive _all over_; and to establish such a consciousness of its own universal livingness there must be the recognition of a corresponding _relation_ equally extensive in character; and the only possible correspondence to fulfil this condition is therefore that of a universally distributed and plastic medium whose particles are all in perfect equilibrium, which is exactly the description of the Primary Substance or ether. We are thus philosophically led to the conclusion that Universal Substance must be projected by Universal Spirit as a necessary consequence of Spirit's own inherent feeling of Aliveness; and in this way we find that the great Primary Polarity of Being becomes established. From this point onward we shall find the principle of Polarity in universal activity. It is that relation between opposites without which no external Motion would be possible, because there would be nowhere to move from, and nowhere to move to; and without which external Form would be impossible because there would be nothing to limit the diffusion of substance and bring it into shape. Polarity, or the interaction of Active and Passive, is therefore the basis of all _Evolution_. This is a great fundamental truth when we get it in its right order; but all through the ages it has been a prolific source of error by getting it in its wrong order. And the wrong order consists in making Polarity the originating point of the Creative Process. What this misconception leads to we shall see later on; but since it is very widely accepted under various guises even at the present day it is well to be on our guard against it. Therefore I wish the student to see clearly that there is something which comes before that Polarity which gives rise to Evolution, and that this something is the original movement of Spirit _within itself_, of which we can best get an idea by calling it Self-contemplation.