In commencing a course of lectures on Mental Science, it is somewhat difficult for the lecturer to fix upon the best method of opening the subject. It can be approached from many sides, each with some peculiar advantage of its own; but, after careful deliberation, it appears to me that, for the purpose of the present course, no better starting-point could be selected than the relation between Spirit and Matter. I select this starting-point because the distinction—or what we believe to be such— between them is one with which we are so familiar that I can safely assume its recognition by everybody; and I may, therefore, at once state this distinction by using the adjectives which we habitually apply as expressing the natural opposition between the two—living spirit and dead matter. These terms express our current impression of the opposition between spirit and matter with sufficient accuracy, and considered only from the point of view of outward appearances this impression is no doubt correct.

We have seen that the descent from personality, as we know it in ourselves, to matter, as we know it under what we call inanimate forms, is a gradual descent in the scale of intelligence from that mode of being which is able to realize its own will-power as a capacity for originating new trains of causation to that mode of being which is incapable of recognizing itself at all. The higher the grade of life, the higher the intelligence; from which it follows that the supreme principle of Life must also be the ultimate principle of intelligence. This is clearly demonstrated by the grand natural order of the universe. In the light of modern science the principle of evolution is familiar to us all, and the accurate adjustment existing between all parts of the cosmic scheme is too self-evident to need insisting upon. Every advance in science consists in discovering new subtleties of connection in this magnificent universal order, which already exists and only needs our recognition to bring it into practical use. If, then, the highest work of the greatest minds consists in nothing else than the recognition of an already existing order, there is no getting away from the conclusion that a paramount intelligence must be inherent in the Life-Principle, which manifests itself as this order; and thus we see that there must be a great cosmic intelligence underlying the totality of things.

We have now paved the way for understanding what is meant by “the unity of the spirit.” In the first conception of spirit as the underlying origin of all things we see a universal substance which, at this stage, is not differentiated into any specific forms. This is not a question of some bygone time, but subsists at every moment of all time in the innermost nature of all being; and when we see this, we see that the division between one specific form and another has below it a deep essential unity, which acts as the supporter of all the several forms of individuality arising out of it. And as our thought penetrates deeper into the nature of this all-producing spiritual substance we see that it cannot be limited to any one portion of space, but must be limitless as space itself, and that the idea of any portion of space where it is not is inconceivable.

It is one of those intuitive perceptions from which the human mind can never get away that this primordial, all-generating living spirit must be commensurate with infinitude, and we can therefore never think of it otherwise than as universal or infinite. Now it is a mathematical truth that the infinite must be a unity. You cannot have two infinites, for then neither would be infinite, each would be limited by the other, nor can you split the infinite up into fractions. The infinite is mathematically essential unity. This is a point on which too much stress cannot be laid, for there follow from it the most important consequences. Unity, as such, can be neither multiplied nor divided, for either operation destroys the unity. By multiplying, we produce a plurality of units of the same scale as the original; and by dividing, we produce a plurality of units of a smaller scale; and a plurality of units is not unity but multiplicity. Therefore if we would penetrate below the outward nature of the individual to that innermost principle of his being from which his individuality takes its rise, we can do so only by passing beyond the conception of individual existence into that of the unity of universal being. This may appear to be a merely philosophical abstraction, but the student who would produce practical results must realize that these abstract generalizations are the foundation of the practical work he is going to do.

Up to this point it has been necessary to lay the foundations of the science by the statement of highly abstract general principles which we have reached by purely metaphysical reasoning. We now pass on to the consideration of certain natural laws which have been established by a long series of experiments and observations, the full meaning and importance of which will become clear when we see their application to the general principles which have hitherto occupied our attention. The phenomena of hypnosis are now so fully recognized as established scientific facts that it is quite superfluous to discuss the question of their credibility. Two great medical schools have been founded upon them, and in some countries they have become the subject of special legislation. The question before us at the present day is, not as to the credibility of the facts, but as to the proper inferences to be drawn from them, and a correct apprehension of these inferences is one of the most valuable aids to the mental scientist, for it confirms the conclusions of purely a priori reasoning by an array of experimental instances which places the correctness of those conclusions beyond doubt.

The great truth which the science of hypnotism has brought to light is the dual nature of the human mind. Much conflict exists between different writers as to whether this duality results from the presence of two actually separate minds in the one man, or in the action of the same mind in the employment of different functions. This is one of those distinctions without a difference which are so prolific a source of hindrance to the opening out of truth. A man must be a single individuality to be a man at all, and, so, the net result is the same whether we conceive of his varied modes of mental action as proceeding from a set of separate minds strung, so to speak, on the thread of his one individuality and each adapted to a particular use, or as varied functions of a single mind: in either case we are dealing with a single individuality, and how we may picture the wheel-work of the mental mechanism is merely a question of what picture will bring the nature of its action home to us most clearly. Therefore, as a matter of convenience, I shall in these lectures speak of this dual action as though it proceeded from two minds, an outer and an inner, and the inner mind we will call the subjective mind and the outer the objective, by which names the distinction is most frequently indicated in the literature of the subject.

An intelligent consideration of the phenomena of hypnotism will show us that what we call the hypnotic state is the normal state of the subjective mind. It always conceives of itself in accordance with some suggestion conveyed to it, either consciously or unconsciously to the mode of objective mind which governs it, and it gives rise to corresponding external results. The abnormal nature of the conditions induced by experimental hypnotism is in the removal of the normal control held by the individual's own objective mind over his subjective mind and the substitution of some other control for it, and thus we may say that the normal characteristic of the subjective mind is its perpetual action in accordance with some sort of suggestion. It becomes therefore a question of the highest importance to determine in every case what the nature of the suggestion shall be and from what source it shall proceed; but before considering the sources of suggestion we must realize more fully the place taken by subjective mind in the order of Nature.

If the student has followed what has been said regarding the presence of intelligent spirit pervading all space and permeating all matter, he will now have little difficulty in recognizing this all-pervading spirit as universal subjective mind. That it cannot as universal mind have the qualities of objective mind is very obvious. The universal mind is the creative power throughout Nature; and as the originating power it must first give rise to the various forms in which objective mind recognizes its own individuality, before these individual minds can re-act upon it; and hence, as pure spirit or first cause, it cannot possibly be anything else than subjective mind; and the fact which has been abundantly proved by experiment that the subjective mind is the builder of the body shows us that the power of creating by growth from within is the essential characteristic of the subjective mind. Hence, both from experiment and from a priori reasoning, we may say that where-ever we find creative power at work there we are in the presence of subjective mind, whether it be working on the grand scale of the cosmos, or on the miniature scale of the individual.