Man, for instance, has, besides his gross physical body, subtler sheaths or bodies by which he lives behind the veil in direct connection with supraphysical planes of consciousness and can be influenced by their powers, movements and beings. What takes place in life has always behind it pre-existent movements and forms in the occult vital planes; what takes place in mind presupposes pre-existent movements and forms in the occult mental planes. That is an aspect of things which becomes more and more evident, insistent and important, the more we progress in a dynamic yoga.
But all this must not be taken in too rigid and mechanical a sense. It is an immense plastic movement full of the play of possibilities and must be seized by a flexible and subtle tact or sense in the seeing consciousness. It cannot be reduced to a too rigorous logical or mathematical formula. Two or three points must be pressed in order that this plasticity may not be lost to our view.
First, each plane, in spite of its connection with others above and below it, is yet a world in itself, with its own movements, forces, beings, types, forms existing as if for its and their own sake, under its own laws, for its own manifestation without apparent regard for the other members of the great series. Thus, if we regard the vital or the subtle physical plane, we see great ranges of it, (most of it), existing in themselves, without any relation with the material world and with no movement to affect or influence it, still less to precipitate a corresponding manifestation in the physical formula. At most we can say that the existence of anything in the vital, subtle physical or any other plane creates a possibility for a corresponding movement of manifestation in the physical world. But something more is needed to turn that static or latent possibility into a dynamic potentiality or an actual urge towards a material creation. That something may be a call from the material plane, e.g., some force or someone on the physical existence entering into touch with a supraphysical power or world or part of it and moved to bring it down into the earth-life. Or it may be an impulse in the vital or other plane itself, e.g., a vital being moved to extend his action towards the earth and establish there a kingdom for himself or the play of the forces for which he stands in his own domain. Or it may be a pressure from above; let us say, some supramental or mental power precipitating its formation from above and developing forms and movements on the vital level as a means of transit to its self-creation in the material world. Or it may be all these things acting together, in which case there is the greatest possibility of an effective creation.
Next, as a consequence, it follows that only a limited part of the action of the vital or other higher plane is concerned with the earth-existence. But even this creates a mass of possibilities which is far greater than the earth can at one time manifest or contain in its own less plastic formulas. All these possibilities do not realise themselves; some fail altogether and leave at the most an idea that comes to nothing; some try seriously and are repelled and defeated and, even if in action for a time, come to nothing. Others effectuate a half manifestation, and this is the most usual result, the more so as these vital or other supraphysical forces come into conflict and have not only to overcome the resistance of the physical consciousness and of matter, but their own internecine resistance to each other. A certain number succeed in precipitating their results in a more complete and successful creation, so that if you compare this creation with its original in the higher plane, there is something like a close resemblance or even an apparently exact reproduction or translation from the supraphysical to the physical formula. And yet even there the exactness is only apparent; the very fact of translation into another substance and another rhythm of manifestation makes a difference. It is something new that has manifested and it is that that makes the creation worth while. What for instance would be the utility of a supramental creation on earth if it were just the same thing as a supramental creation on the supramental plane? It is that, in principle, but yet something else, a triumphant new self-discovery of the Divine in conditions that are not elsewhere.
...we use, normally, only our corporeal senses and live almost wholly in the body and the physical vitality and the physical mind, and it is not directly through these that the life-world enters into relations with us. That is done through other sheaths of our being, — so they are termed in the Upanishads, - other bodies, as they are called in a later terminology, the mental sheath or subtle body in which our true mental being lives and the life sheath or vital body which is more closely connected with the physical or food-sheath and forms with it the gross body of our complex existence. These possess powers, senses, capacities which are always secretly acting in us, are connected with and impinge upon our physical organs and the plexuses of our physical life and mentality. By self-development we can become aware of them, possess our life in them, get through them into conscious relation with the life-world and other worlds and use them also for a more subtle experience and more intimate knowledge of the truths, facts and happenings of even the material world itself. We can by this self-development live more or less fully on planes of our existence other than the material which is now all in all to us.
Our souls can visit in great lonely hours
Still regions of imperishable Light,
All-seeing eagle-peaks of silent Power
And moon-flame oceans of swift fathomless Bliss
And calm immensities of spirit Space.