Curiosities of Medical Experience
Part 33
Dreams, to whatever causes they may be attributed, vary according to the nature of our sleep: if it is sound and natural, they will seldom prevail; if, on the contrary, it be broken and uneasy, by a spontaneous association dreams will become fanciful, and might indeed be called visions, so fantastic and chimerical are all the objects that present themselves in motley groups to the disturbed mind. This derangement in the sensorium may be referred to various physical causes,--the sensations of heat or of cold, obstruction in the course of the circulation of the blood, as when lying upon the back, a difficult digestion. In a sound sleep our dreams are seldom remembered except in a vague manner; whereas, in a broken sleep, as Formey has observed, the impression of the dream remains upon the mind, and constitutes what this philosopher called "_the lucidity of dreams_." It not unfrequently happens to us that we have had a similar dream several times, or at least we labour under this impression; nay, many persons fancy that particular events of their life at the moment of their occurrence had clearly taken place at a former period either in reality or in a dream. Morning "winged dreams" are more easily remembered in their circumstantial vagaries than those of the preceding night, for at that period (the morning) our sleep is not sound, and dreams become more lucid. These _rêvasseries_, as the French call them, are admirably described by Dryden:
A dream o'ertook me at my waking hour This morn, and dreams they say are then divine, When all the balmy vapours are exhal'd, And some o'erpow'ring god continues sleep.
That we are more or less impressionable in our sleep is rendered evident by the facility with which even a sound sleeper is disturbed by the slightest noise: the sparkling of a fire, or the crackling produced by the wick of our night-lamp when coming into contact with the water in the glass, the sting of an insect, the slightest admission of a higher or lower temperature, will occasion a broken sleep and its dreams. It has been remarked that the sense of seeing is more frequently acted upon in dreams than that of hearing, and very seldom do we find our smell and taste under their influence. It is possible that this peculiarity may arise from the greater variety of impressions with which the sight is daily struck, and which memory communicates by association or retransmission. Next to feeling, vision is the first sense brought into relation with external objects. When we hear noises, explosions, tumultuous cries, it is more than probable that our dreams partake of a delirious and morbid nature, or of sensorial or intellectual hallucinations, in which the mind is actually diseased, and our perceptions become erroneous: then we speak loudly to others, and to ourselves. When these hallucinations prevail after sleep, the invasion of mania may be apprehended.
Cabanis, in his curious investigations on the mind, has endeavoured to fix the order in which the different parts of our organization go to sleep. First the legs and arms, then the muscles that support the head and back: the first sense that slumbers, according to his notions, is that of sight; then follow in regular succession the senses of taste, smell, hearing, and feeling. The viscera fall asleep one after the other, but with different decrees of soundness. If this doctrine be correct, we may easily conceive the wild and strange inconsistencies of our dreams, during which the waking and the sleeping organs are acting and reacting upon each other.
Corporeal sensations and different organic actions frequently attend our dreams; but these may be attributed to our mode of living, or the indulgence in certain unruly desires and conversations. That man and animals dream of the pursuits of the preceding day there can be no doubt: hence the line,
Et canis in somnis leporis vestigia latrat.
The effects of a heavy meal, more especially a supper, in disturbing our rest, was well known and recorded by ancient physicians: and Crato tells us "that the fittest time to repair to rest is two or three hours after supper, when the meat is then settled in the bottom of the stomach: and 'tis good to lie on the right side first, because at that side the liver doth rest under the stomach, not molesting any way, but heating him as a fire doth a kettle that is put to it. After the first sleep 'tis not amiss to lie upon the left side, that the meat may the better descend; and sometimes again on the belly, but never on the back."
Our ancestors had recourse to various devices to procure sound sleep. Borde recommends a good draught of strong drink before going to bed; Burton, a nutmeg and ale, with a good potation of muscadine with a toast; while Ætius recommends a sup of vinegar, which, according to Piso, "_attenuat melancholiam et ad conciliandum somnum juvat_." Oppression from repletion will occasion fearful dreams and the night-mare; and bodily sufferings, when exhaustion has brought on sleep, will also be attended with alarming and painful visions.
Levinus Lemnius recommended to sleep with the mouth shut, to promote a regular digestion by the exclusion of too much external air. The night-mare is admirably described in Dryden's translation of Virgil:
And as, when heavy sleep has closed the sight, The sickly fancy labours in the night, We seem to run, and, destitute of force, Our sinking limbs forsake us in the course: In vain we heave for breath; in vain we cry; The nerves, unbraced, their usual strength deny, And on the tongue the falt'ring accents die.
In the Runic theology it was regarded as a spectre of the night, which seized men in their sleep, and suddenly deprived them of speech and of motion. It was vulgarly called witch-riding, and considered as arising from the weight of fuliginous spirits incumbent on the breast.
_Somnus ut sit levis, sit tibi coena brevis_, is the ancient axiom of our distich,
That your sleep may be light, Let your supper be slight.
Notwithstanding this rule of health, it is nevertheless true that many persons sleep more soundly after a hearty supper; and, most unquestionably, dreams are more frequent towards morning than in the beginning of the night. In my opinion, I should apprehend that the sound sleep of supper-eaters is to be attributed to the narcotic nature of their potations, more than the meal, although the _siesta_ of southern countries might be advanced in favour of a contrary opinion.
When philosophers speak of dreams being mental operations independent of the will, they speak vaguely, for the operations of the mind when we are awake are too frequently uncontrolled by volition. Did we possess this power over our rebellious thoughts, who would constantly ponder on a painful subject? Our thoughts cannot be suspended at will, and their influence has been beautifully described by Shakspeare:
My brain I'll prove the female to my soul, My soul the father; and these two beget A generation of still breeding thoughts.
Volition has no more power over thought when we are awake than sleeping; and, despite all metaphysical and psychological speculations, it cannot be demonstrated that the mind does not retain its full energies during sleep, only they cease to be regulated by judgment, and are not, to use Locke's words, under the rule and conduct of the understanding; and even on this opinion it has been fairly observed, that much of incongruity which is supposed to prove suspension of reason, and much of the wild discordancy of representation which appears to prevail during our sleep, may arise from the defect of memory when we are awake, that does not retain the impression of images which have passed across the mind in light and rapid succession, and which, therefore, exhibit but a partial and imperfect sketch of the picture that engaged the attention in sleep. The well-known fact that the impressions of our dreams are oftentimes more vivid and correct, when some time has elapsed, than on our awakening, tends to confirm this hypothesis; and these recollections are the more vivid when they bear any analogy to circumstances that come to pass.
Sir Thomas Brown was of opinion that sleep was the waking of the soul; the ligation of sense, but the liberty of reason; and that our waking conceptions do not match the fancies of our sleep. He thus expresses himself in his Religio Medici: "At my nativity my ascendant was the watery sign of Scorpius; I was born in the planetary hour of Saturn, and I think I have a piece of that leaden planet in me. I am no way facetious, nor disposed for the mirth and galliardise of company; yet in one dream I can compose a whole comedy, behold the action, apprehend the jests, and laugh myself awake at the conceits thereof. Were my memory as faithful as my reason is then fruitful, I would never study but in my dreams, and this time also would I choose for my devotions; but our grosser memories have then so little hold of our abstracted understandings, that they forget the story, and can only relate to our awaked souls a confused and broken tale of that that hath passed."
Dreams have been considered as prescriptive in various diseases. Diodorus Siculus relates that a certain Scythian dreamed that Æsculapius had drawn the humours of his body to one place, or head, to have it lanced. When Galen had an inflammation of the diaphragm, we are told that he was directed in a dream to open a vein between the thumb and the fourth finger--an operation which restored him to health. Marcus Antoninus asserted that he learned in his dreams various remedies for spitting of blood. It is related of Sir Christopher Wren, that, when at Paris, in 1671, being disordered with "a pain in his reins," he sent for a physician, who prescribed blood-letting, but he deferred submitting to it, and dreamed that very night that he was in a place where palm-trees grew, and that a woman in a romantic habit offered dates to him. The next day he sent for dates, which cured him. Now, although this cure, brought about by a dream, was considered wonderful, its circumstances offer nothing supernatural. It is more than probable that Sir Christopher had frequently read in foreign works on medicine, that dates were recommended as an efficacious remedy in nephritic complaints; and, moreover, had met in his daily perambulations female quacks, who exhibit themselves to this day in the French metropolis, fantastically attired, and vending their far-famed nostrums. That he should have remembered dates, and that the phantasm of the she-mountebank might at the same time have struck his fancy, were two associations by no means improbable.
It is very likely that all the strange stories of prophetic dreams might be traced to a similar connexion of ideas. I have before observed that dreams do not always assume their complexion from recent occurrences, and our bodily sufferings during sleep bring to our recollection every circumstance that regards the malady. A patient who had a bottle of hot water placed at his feet dreamed that he was walking in great agony in the burning lava of Vesuvius. Similar associations exist when awake: the man whose arm has been amputated constantly refers the pain he experiences to the lost hand, or to that part of the limb which received the injury; and the very same nervous illusion prevails during his slumbers. A case is recorded of an officer who had lost his leg, and, when cold, felt comfort and warmth by wrapping the stump of his wooden leg in flannel.
In various diseases the nature and the period of the invasion of dreams afford a valuable ground of observation to the physician both in his diagnosis and prognosis of the case. In incipient hydro-thorax, for instance, dreams occur at the very moment the patient falls asleep, and he fancies himself suffocated by some impending and destructive weight. Diseases of the heart are accompanied by alarming dreams, from which the patient starts up in great terror. In children the perturbation of their sleep frequently indicates the seat of their sufferings; and the valuable researches on the nervous system by Charles Bell have enabled the medical attendant to read in the features of a sleeping infant whether the malady be in the head, the cavity of the chest, or the abdomen.
If proof were wanting that dreams arise from our waking thoughts, it might be found in the circumstance of those sleepers who divulge their secrets, and verify the lines of Shakspeare:
There are a kind of men so loose of soul, That in their sleep will mutter their affairs.
Reason, therefore, prompts us to reject the idea of dreams being preternatural suggestions. In general, we may consider them as a morbid excitement of the brain, arising either from moral or physical causes, and depending essentially on the condition of our mind and body. Our most lively hopes are ever linked with fears that prey upon us even when most secure; and these apprehensions, recurring in our dreams, prove too often prophetic of the very events we dreaded. The prejudices of early education shed around these forewarnings circumstantial incidents; and fear is the greatest ally of superstition.
If our visions by night are fraught with such singular circumstances, our "day dreams," or _reveries_, are frequently attended with strange associations. The impressions received during these ecstatic visions or trances will occasionally act so powerfully upon the mind, that during our waking hours and the usual pursuits of life we cannot divest ourselves of the existence of their reality.
Dr. Arnould has given the following curious account of a case of this kind, as narrated by the individual himself:--"One afternoon in the month of May, feeling himself a little unsettled and not inclined to business, he thought he would take a walk into the city to amuse his mind, and having strolled into St. Paul's Churchyard, he stopped at the shop window of Carrington and Bowles, and looked at the pictures, among which was one of the cathedral. He had not been long there before a short grave-looking elderly gentleman, dressed in dark brown clothes, came up and began to examine the prints, and occasionally casting a glance at him, very soon entered into conversation with him, and praising the view of St. Paul's which was exhibited at the window, told him many anecdotes of Sir Christopher Wren the architect, and asked him at the same time if he had ever ascended to the top of the dome. He replied in the negative. The stranger then inquired if he had dined, and proposed that they should go to an eating-house in the neighbourhood, adding that after dinner he would accompany him up St. Paul's. It was a glorious afternoon for a view, and he was so familiar with the place that he could point out every object worthy of attention. The kindness of the old gentleman's manner induced him to comply with the invitation, and they went to a tavern in some dark alley, the name of which he did not know. They dined and very soon left the table, and ascended to the ball just below the cross, which they entered alone.
"They had not been there many minutes, when, while he was gazing on the extensive prospect and delighted with the splendid scene below him, the grave gentleman pulled out from an inside coat-pocket something like a compass, having round the edge some curious figures; then having muttered some unintelligible words, he placed it in the centre of the ball. He felt a great trembling, and a sort of horror came over him, which was increased by his companion asking him if he should like to see any friend at a distance and to know what he was at that time doing, for if so, the latter could show him any such person. It happened that his father had been for a long time in bad health and for some weeks past he had not visited him. A sudden thought came into his mind, so powerful, that it overcame his terror, that he should like to see his father. He had no sooner expressed the wish than the exact person of his father was immediately presented to his sight in the mirror, reclining in his armchair and taking his afternoon sleep. Not having fully believed in the power of the stranger to make good his offer, he became overwhelmed with terror at the clearness and truth of the vision presented to him, and he entreated his mysterious companion that they might immediately descend, as he felt himself very ill. The request was complied with, and on parting under the portico of the northern entrance, the stranger said to him, 'Remember you are the slave of the man of the mirror.'"
He returned in the evening to his home, he does not know exactly at what hour; felt himself unquiet, depressed, gloomy, apprehensive, and haunted with thoughts of the stranger. For the last three months he has been conscious of the power of the latter over him. Dr. Arnould adds, "I inquired in what way his power was exercised? He cast on me a look of suspicion mingled with confidence, took my arm, and after leading me through two or three rooms and then into the garden, exclaimed, 'It is of no use--there is no concealment from him, for all places are alike open to him--he sees us--and he hears _us now_.' I asked him where the being was who saw us and heard us? He replied in a voice of deep agitation, 'Have I not told you that he lives in the ball below the cross on the top of St. Paul's, and that he only comes down to take a walk in the churchyard and get his dinner at the house in the dark alley. Since that fatal interview with the necromancer,' he continued, 'for such I believe him to be, he is continually dragging me before him in his mirror--he not only sees me every moment of the day, but he reads all my thoughts, and I have a dreadful consciousness that no action of my life is free from his inspection, and no place can afford me security from his power.' On my reply that the darkness of the night would afford him protection from these machinations, he said, 'I know what you mean, but you are quite mistaken--I have only told you of the mirror, but in some part of the building which he passed on coming away, he showed me what he called a great bell, and I heard sounds which came from it, and which went to it, sounds of laughter, and of anger, and of pain; there was a dreadful confusion of sounds, and I listened with wonder and affright'--he said, 'this is my organ of hearing; this great bell is in communication with all the other bells within the circle of hieroglyphics, by which every word spoken by those under my control is made audible to me.' Seeing me look surprised at him, he said, 'I have not yet told you all, for he practises his spells by hieroglyphics on walls and houses, and wields his power, like a detestable tyrant as he is, over the minds of those whom he has enchanted, and who are the objects of his constant spite within the circle of his hieroglyphics.' I asked him what these hieroglyphics were, and how he perceived them? He replied, 'Signs and symbols which you in your ignorance of their true meaning have taken for letters and words, and read, as you have thought, _Day and Martin_ and _Warren's blacking_. Oh! that is all nonsense! they are only the mysterious characters which he places to mark the boundaries of his dominions, and by which he prevents all escape from his tremendous power. How I have toiled and laboured to get beyond the limits of his influence! Once I walked for three days and three nights, till I fell down under a wall exhausted by fatigue, and dropped asleep; but on awaking I saw the dreadful sign before my eyes, and I felt myself as completely under his infernal spell at the end as at the beginning of the journey.'"
Dr. Pritchard remarks on this singular case of insanity, that this gentleman had actually ascended to the top of St. Paul's, and that impressions there received being afterwards renewed in his mind when in a state of vivid excitement, in a dream or ecstatic revery, became so blended with the creation of fancy, as to form one mysterious vision, in which the true and the imaginary were afterwards inseparable.
It is also possible that this person, being of a nervous and susceptible disposition, had been struck, when on the dizzy height of the cupola, with a vertigo, or fit, during which these phantasms had struck him in so vivid a manner as to derange his intellects--the loud and terrific sound of the bell adding to the horror of his situation. It is well known that persons have recollected circumstances that occurred around them during an epileptic and an apoplectic attack. Our worthy visionary was for two years an inmate of a private asylum.
In regard to the verification of dreams, they may be easily accounted for by that proneness that most men, especially if of a weak and impressionable state of mind, experience in courting the object of their hopes or fears. Thus have the absurd prognostications of fortune-tellers been too frequently fatal, as we may work up our thoughts to such an intensity as to bring on the very death that we apprehend. Dr. Pritchard relates the case of a clergyman, in an indifferent state of health, who, when standing one day at the corner of a street, saw a funeral procession approaching him. He waited till it came near him, saw all the train pass him, with black nodding plumes, and read his own name on the coffin, which was carried by, and entered, with the whole procession, into the house where he resided. This was the commencement of an illness which put an end to his life in a few days.
During a severe fever, in the peninsula, my nightly rest was constantly disturbed by the threatening appearance of animals with fearful horns and antlers, incessantly hovering about me. For a long time after my recovery the spectral illusion continued, and every horse or mule that passed by me appeared to be armed with immense horns.
It is to be feared that, notwithstanding the ingenuity of the many physiologists who have sought to investigate the nature of dreams, we shall never come to any satisfactory conclusion, since we follow too frequently the example of the German philosopher, Lesage, who, in his endeavour to throw some light on this obscure subject, sought to ascertain the intermediate condition of the mind when passing from the waking state into sleep, a transition which never has been, and, most probably, never can be ascertained, since sleep, to a certain degree, is a suspension of all power of attention, perception, volition, and every spontaneous faculty.
ON FLAGELLATION.
Amongst the various moral and physical remedies introduced by the priesthood and physicians for the benefit of society, flagellation once held a most distinguished rank. As a remedy, it was supposed to reanimate the torpid circulation of the capillary or cutaneous vessels, to increase muscular energy, promote absorption, and favour the necessary secretions of our nature. No doubt, in many instances, its action as a revulsive may be beneficial; and urtication, or the stinging with nettles, has not unfrequently been prescribed with advantage. As a religious discipline, for such has this system of mortification been called, it has been considered as most acceptable to Heaven; so much so, indeed, that the fustigation was commensurate with the sinner's offence. Under the head of Dæmonomania I have endeavoured to show that whipping was equally agreeable to the evil spirit, who delighted in flogging the elect.