Blackwood's Edinburgh Magazine, Volume 61, No. 379, May, 1847. Various

uneasy posture, for instance, or the introduction of sudden light into the room, or a loud and unusual noise, or even whisperings in the ear—will give a new and corresponding direction to the dreaming thoughts. Sensation is only commonly not called into play in sleep: we shut our eyes; we even close the pupils; we cover up our ears; court darkness and quiet; knowing that the more we exclude sensible impressions the better we shall sleep.

      But the great difference between sleeping and waking, that which indeed constitutes the essence of the former state, psychically considered, is the suspension of the attention—all the leading phenomena of sleep are directly traceable to this cause: for example—

      In sleep we cease to support ourselves, and fall, if we were previously standing or sitting. That is, we cease to attend to the maintenance of our equilibrium. We forget the majority of our dreams: attention is the soul of recollection.

      Our dreams are often nonsense, or involve absurdities or ideas which we know to be false. The check of the attention is absent.

      Our ideas whirl with unwonted rapidity in our dreams; the fly-wheel of the attention has been taken off.

      When we are being overcome with sleep, we are conscious of not being able to fix our attention.

      When we would encourage sleep, we endeavour to avoid thoughts which would arouse the attention.

      Though the sensibility of our organs is really undiminished, it seems to be lowered in sleep, because then no attention is given to common sensation.

      Sleep, however, it should be added, may be either profound, or light, or imperfect; in the two latter cases, the attention seems to be less completely suspended.

      So, in sleep, it is the attention alone that really sleeps; the rest of the mental powers and impulses are on the contrary in motion, but free and unchecked, obtaining their refreshment and renovation from gambolling about and stretching themselves. The inspector only slumbers; or, to use a closer figure, he retires to a sufficient distance from them, not to be disturbed by any common noise they may make; any great disturbance calls him back directly; likewise, he sits with his watch in his hand, having a turn for noting the flight of time.

      In contrast with the above conception of the states of sleeping and waking, the alternations of which compose our ordinary being, I have now to hold up another conception, resembling the first, of which it is the double,—but vaguer, more shadowy, of larger and gigantic proportions, from its novelty astonishing, like the mocking spectre of the Hartz; which is yet but your own shadow cast by the level sunbeams on the morning mist.

      All the phenomena embodied in this conception, I propose to denominate Trance. But let me premise that all do not belong to every instance of trance. If I undertook to specify the external appearances of the human species, I must enunciate among other things, as colours of the skin, white, yellow, brown, black; as qualities of the hair, that it is flowing, soft, lanky, harsh, frizzled, woolly; but I should not mean that every human being presented all these features.

      Then, as our ordinary being presents an alternation of sleeping and waking, so does trance-existence. There is a trance-sleep and a trance-waking to correspond with ordinary sleep and ordinary waking.

      As natural sleep has different degrees of profoundness, so has trance sleep. They present a latitude so extensive, that it is convenient and allowable to lay down three different degrees or states of trance-sleep.

      Then, of trance-sleep first, and of its three degrees.

      The deepest grade of trance-sleep extinguishes all the ordinary signs of animation. It forms the condition in which many are buried alive. It is the so-called vampyr state in the vampyr superstition. [See Letter II. of this series.]

      The middle grade presents the appearance of profound unconsciousness; but a gentle breathing and the circulation are distinguishable. The body is flexible, relaxed, perfectly impassive to ordinary stimuli. The pupils of the eyes are not contracted, but yet are fixed. This state is witnessed occasionally in hysteria, after violent fits of hysteric excitement.

      In the lightest degree of trance-sleep, the person can sustain itself sitting; the pupils are in the same state as above, or natural; the apparent unconsciousness profound.

      Two features characterise trance-sleep in all its grades. One, an insensibility to all common stimulants, however violently applied; the other, an inward flow of ideas, a dream or vision. It is as well to provide all words with a precise meaning. The term vision had better be restricted to mean a dream during trance-sleep.

      The behaviour of Grando, who had been buried in the vampyr state, when they were clumsily cutting his head off, makes no exception to the first of the above positions. He had then just emerged out of his trance-sleep, either through the lapse of time, or from the admission of fresh air, or what not.

      It will not be doubted that the mind may have visions in all the grades of trance-sleep, if it can be proved capable of them in the deepest; therefore, one example will suffice for all three cases.

      Henry Engelbrecht, as we learn in a pamphlet published by himself in the year 1639, after a most ascetic life, during which he had experienced sensorial illusions, was thrown for a brief period into the deepest form of trance-sleep, which event he thus describes:—

      In the year 1623, exhausted by intense mental excitement of a religious kind, and by abstinence from food, after hearing a sermon which strongly affected him, he felt as if he could combat no more, so he gave in and took to his bed. There he lay a week without tasting any thing but the bread and wine of the sacrament. On the eighth day, he thought he fell into the death-struggle; death seemed to invade him from below upwards; his body became rigid; his hands and feet insensible; his tongue and lips incapable of motion: gradually his sight failed him, but he still heard the laments and consultations of those around him. This gradual demise lasted from mid-day till eleven at night, when he heard the watchmen; then he lost consciousness of outward impressions. But an elaborate vision of immense detail began; the theme of which was, that he was first carried down to hell, and looked into the place of torment; from thence, quicker than an arrow, was he borne to paradise. In these abodes of suffering and happiness, he saw and heard and smelt things unspeakable. These scenes, though long in apprehension, were short in time, for he came enough to himself by twelve o'clock, again to hear the watchmen. It took him another twelve hours to come round entirely. His hearing was first restored; then his sight, feeling, and motion followed; as soon as he could move his limbs, he rose. He felt himself stronger than before the trance.

      Trance-waking presents a great variety of phases; but it is sufficient for a general outline of the subject to make or specify but two grades—half-waking and full-waking.

      In trance half-waking, the person rises, moves about with facility, will converse even, but is almost wholly occupied with a dream, which he may be said to act, and his perceptions and apprehensions are with difficulty drawn to any thing out of the circle of that dream.

      In trance full-waking, the person is completely alive to all or most of the things passing around him, and would not be known by a stranger to be otherwise than ordinarily awake.

      I propose to occupy the latter half of this letter with details of cases exemplifying these two states. Those which I shall select, will be instances either of somnambulism, double consciousness, or catalepsy, the popular phenomena of which I take this occasion of displaying. By these details the following features will be proved to belong to trance-waking.

      1. Common feeling, taste, and smell, are generally suspended in trance-waking. In trance half-waking, sight is equally suspended. In trance full-waking, every shade of modified sensibility up to perfect possession of sensation, presents itself in different cases, and sometimes in successive periods of the same cases.

      2. The general diminution or suspension of sensation is, as it were, made up for, either by an intense acuteness of partial sensation, often developed in an unaccustomed organ, or by some new mode of perception.

      3. The memory and circle of ideas are curiously circumscribed.

      4. To make up for this, some of the powers of the mind acquire concentration and temporary increase of force, and occasionally new powers of apprehension appear to be developed.

      5.