This gives a certain remnant of vitality to the astral, corpse, so that it still moves freely in the astral world, and may easily be mistaken by the ignorant for the man himself—the more so as such fragmentary consciousness as still remains to it is part of the man, and therefore it naturally regards itself and speaks of itself as the man. It retains his memories, but is only a partial and unsatisfactory representation of him. Sometimes in spiritualistic séances one comes into contact with an entity of this description, and wonders how it is that one's friend has deteriorated so much since his death. To this fragmentary entity we give the name "shade".

At a later stage even this fragment of consciousness dies out of the astral body, but does not return to the ego to whom it originally belonged. Even then the astral corpse still remains, but when it is quite without any trace of its former life we call it a "shell". Of itself a shell cannot communicate at a séance, or take any action of any sort; but such shells are frequently seized upon by sportive nature-spirits and used as temporary habitations. A shell so occupied can communicate at a séance and masquerade as its original owner, since some of his characteristics and certain portions of his memory can be evoked by the nature-spirit from his astral corpse.

When a man falls asleep, he withdraws in his astral body, leaving the whole of the physical vehicle behind him. When he dies, he draws out with him the etheric part of the physical body, and consequently has usually at least a moment of unconsciousness while he is freeing himself from it. The etheric double is not a vehicle and cannot be used as such; so when the man is surrounded by it, he is for the moment able to function neither in the physical world nor the astral. Some men succeed in shaking themselves free of this etheric envelope in a few moments; others rest within it for hours, days or even weeks.

Nor is it certain that, when the man is free from this, he will at once become conscious of the astral world. For there is in him a good deal of the lowest kind of astral matter, so that a shell of this may be made around him. But he may be quite unable to use that matter. If he has lived a reasonably decent life he is little in the habit of employing it or responding to its vibrations, and he cannot instantly acquire this habit. For that reason, he may remain unconscious until that matter gradually wears away, and some matter which he is in the habit of using comes on the surface. Such an occlusion, however, is scarcely ever complete, for even in the most carefully made shell some particles of the finer matter occasionally find their way to the surface, and give him fleeting glimpses of his surroundings.

There are some men who cling so desperately to their physical vehicles that they will not relax their hold upon the etheric double, but strive with all their might to retain it. They may be successful in doing so for a considerable time, but only at the cost of great discomfort to themselves. They are shut out from both worlds, and find themselves surrounded by a dense grey mist, through which they see very dimly the things of the physical world, but with all the colour gone from them. It is a terrible struggle for them to maintain their position in this miserable condition, and yet they will not relax their hold upon the etheric double, feeling that that is at least some sort of link with the only world that they know. Thus they drift about in a condition of loneliness and misery until from sheer fatigue their hold fails them, and they slip into the comparative happiness of astral life. Sometimes in their desperation they grasp blindly at other bodies, and try to enter into them, and occasionally they are successful in such an attempt. They may seize upon a baby body, ousting the feeble personality for whom it was intended, or sometimes they grasp even the body of an animal. All this trouble arises entirely from ignorance, and it can never happen to anyone who understands the laws of life and death.

When the astral life is over, the man dies to that world in turn, and awakens in the mental world. With him it is not at all what it is to the trained clairvoyant, who ranges through it and lives amidst the surroundings which he finds there, precisely as he would in the physical or astral worlds. The ordinary man has all through his life been encompassing himself with a mass of thought-forms. Some which are transitory, to which he pays little attention, have fallen away from him long ago, but those which represent the main interests of his life are always with him, and grow ever stronger and stronger. If some of these have been selfish, their force pours down into astral matter, and he has exhausted them during his life in the astral world. But those which are entirely unselfish belong purely to his mental body, and so when he finds himself in the mental world it is through these special thoughts that he is able to appreciate it.

His mental body is by no means fully developed; only those parts of it are really in action to their fullest extent which he has used in this altruistic manner. When he awakens again after the second death, his first sense is one of indescribable bliss and vitality—a feeling of such utter joy in living that he needs for the time nothing but just to live. Such bliss is of the essence of life in all the higher worlds of the system. Even astral life has possibilities of happiness far greater than anything that we can know in the dense body; but the heaven-life in the mental world is out of all proportion more blissful than the astral. In each higher world the same experience is repeated. Merely to live in any one of them seems the uttermost conceivable bliss; and yet, when the next one is reached, it is seen that it far surpasses the last.

Just as the bliss increases, so does the wisdom and the breadth of view. A man fusses about in the physical world and thinks himself so busy and so wise; but when he touches even the astral, he realizes at once that he has been all the time only a caterpillar crawling about and seeing nothing but his own leaf, whereas now he has spread his wings like the butterfly and flown away into the sunshine of a wider world. Yet, impossible as it may seem, the same experience is repeated when he passes into the mental world, for this life is in turn so much fuller and wider and more intense than the astral that once more no comparison is possible. And yet beyond all these there is still another life, that of the intuitional world, unto which even this is but as moonlight unto sunlight.

The man's position in the mental world differs widely from that in the astral. There he was using a body to which he was thoroughly accustomed, a body which he had been in the habit of employing every night during sleep. Here he finds himself living in a vehicle which he has never used before—a vehicle furthermore which is very far from being fully developed—a vehicle which shuts him out to a great extent from the world about him, instead of enabling him to see it. The lower part of his nature burnt itself away during his purgatorial life, and now there remain to him only his higher and more refined thoughts, the noble and unselfish aspirations which he poured out during earth-life. These cluster round him, and make a sort of shell about him, through the medium of which he is able to respond to certain types of vibrations in this refined matter.

These thoughts which surround him are the powers by which he draws upon the wealth of the heaven-world, and he finds it to be a storehouse of infinite extent, upon which he is able to draw just according to the power of those thoughts and aspirations; for in this world is existing the infinite fullness of the Divine Mind, open in all its limitless affluence to every soul, just in proportion as that soul has qualified itself to receive. A man who has already completed his human evolution, who has fully realized and unfolded the divinity whose germ is within him, finds the whole of this glory within his reach; but since none of us has yet done that, since we are only gradually rising towards that splendid consummation, it follows that none of us as yet can grasp that entirety.