From mental healing it is but a step to telepathy, clairvoyance and other, kindred manifestations of transcendental power which, are from time to time exhibited by the subjective entity and which follow laws as accurate as those which govern what we are accustomed to consider our more normal faculties; but these subjects do not properly fall within the scope of a book whose purpose is to lay down the broad principles which underlie _all_ spiritual phenomena. Until these are clearly understood the student cannot profitably attempt the detailed study of the more interior powers; for to do so without a firm foundation of knowledge and some experience in its practical application would only be to expose himself to unknown dangers, and would be contrary to the scientific principle that the advance into the unknown can only be made from the standpoint of the known, otherwise we only come into a confused region of guess-work without any clearly defined principles for our guidance. XII. THE WILL. The Will is of such primary importance that the student should be on his guard against any mistake as to the position which it holds in the mental economy. Many writers and teachers insist on will-power as though that were the creative faculty. No doubt intense will-power can evolve certain external results, but like all other methods of compulsion it lacks the permanency of natural growth. The appearances, forms, and conditions produced by mere intensity of will-power will only hang together so long as the compelling force continues; but let it be exhausted or withdrawn, and the elements thus forced into unnatural combination will at once fly back to their proper affinities; the form created by compulsion never had the germ of vitality _in itself_ and is therefore dissipated as soon as the external energy which supported it is withdrawn. The mistake is in attributing the creative power to the will, or perhaps I should say in attributing the creative power to ourselves at all. The truth is that man never creates anything. His function is, not to create, but to combine and distribute that which is already in being, and what we call our creations are new combinations of already existing material, whether mental or corporeal. This is amply demonstrated in the physical sciences. No one speaks of creating energy, but only of transforming one form of energy into another; and if we realize this as a universal principle, we shall see that on the mental plane as well as on the physical we never create energy but only provide the conditions by which the energy already existing in one mode can exhibit itself in another: therefore what, relatively to man, we call his creative power, is that receptive attitude of expectancy which, so to say, makes a mould into which the plastic and as yet undifferentiated substance can flow and take the desired form. The will has much the same place in our mental machinery that the tool-holder has in a power-lathe: it