One of the earliest discoveries we all make is the existence of Matter. The bruised shins of our childhood convince us of its solidity, so now comes the question, Why does Matter exist? The answer is that if the form were not expressed in solid substance, things would be perpetually flowing into each other so that no identity could be maintained for a single moment. To this it might be replied that a condition of matter is conceivable in which, though in itself a plastic substance, in a fluent state, it might yet by the operation of will be held in any particular forms desired. The idea of such a condition of matter is no doubt conceivable, and when the fluent matter was thus held in particular forms you would have concrete matter just as we know it now, only with this difference, that it would return to its fluent state as soon as the supporting will was withdrawn. Now, as we shall see later on, this is precisely what matter really is, only the will which holds it together in concrete form is not individual but cosmic. In itself the Essence of Matter is precisely the fluent substance we have imagined, and as we shall see later on the knowledge of this fact, when realized in its proper order, is the basis of the legitimate control of mind over matter. But a world in which every individual possessed the power of concreting or fluxing matter at his own sweet will irrespective of any universal coordinating principle is altogether inconceivable--the conflict of wills would prevent such a world remaining in existence. On the other hand, if we conceive of a number of individuals each possessing this power and all employing it on the lines of a common cosmic unity, then the result would be precisely the same stable condition of matter with which we are familiar--this would be a necessity of fact for the masses who did not possess this power, and a necessity of principle for the few who did. So under these circumstances the same stable conditions of Nature would prevail as at present, varied only when the initiated ones perceived that the order of evolution would be furthered, and not hindered, by calling into action the higher laws. Such occasions would be of rare occurrence, and then the departure from the ordinary law would be regarded by the multitude as a miracle. Also we may be quite sure that no one who had attained this knowledge in the legitimate order would ever perform a "miracle" for his own personal aggrandizement or for the purpose of merely astonishing the beholders--to do so would be contrary to the first principle of the higher teaching which is that of profound reverence for the Unity of the All-originating Principle. The conception, therefore, of such a power over matter being possessed by certain individuals is in no way opposed to our ordinary recognition of concrete matter, and so we need not at present trouble ourselves to consider these exceptions.