There are, however, certain facts which seem to prove that the mind does, at least, not altogether cease its activity while the body is asleep. How else could we explain the power many persons undoubtedly possess to awake at a fixed hour, and the success with which, more than once, great mental efforts have been made during profound sleep? Of the latter, Tartini's famous sonata is a striking instance. He had endeavored in vain to finish this great work; inspiration would not come, and he had abandoned the task in despair. During the night he had a dream in which he once more tried his best, but in vain; at the moment of despair, however, the Devil appeared to him and promised to finish the work in return for his soul. The composer, nothing loath, surrenders his soul and hears his magnificent work gloriously completed on the violin. He wakes up in perfect delight, goes to his desk, and at once writes down his "Devil's Sonata." Even children are known occasionally to be able to give intelligent answers while fast asleep; the questions, however, must be in accordance with the current of their thoughts, otherwise they are apt to be aroused. A case is quoted by Reil of two soldiers who used, at times, to keep up an uninterrupted conversation during a whole night, while they were to all appearances fast asleep. A lady, also, was unable to refuse answers to questions put to her at night, and had at last to lock herself in carefully whenever she went to sleep.
Hence it is that some of the most profound thinkers who have discussed the subject of dreams, like Descartes and Leibnitz, Jouffroy and Dugald Stewart, Richard and Carus, with a number of others, assert the uninterrupted wakefulness of the mind. Some authors believe that the spiritual part of man needs no sleep, but delights in the comfort of feeling that the body is in perfect repose, and of forgetting, by these means, for a time the troubles of daily life, and the responsibilities of our earthly existence. They base this view upon the fact, that, as far as we can judge, the mind is, during sleep, independent of the body and the outer world. Thinking is quite possible during sleep without dreaming, and certain bodily sensations, even, are correctly perceived, as when we turn over in our sleep, because lying on one side produces pain or uneasiness. We not only talk while we are asleep, but laugh or weep, sigh or groan. A slight noise, a whispered word, affect the course of our thoughts, and produce new images in our dreams, as certain affections and even the pressure upon certain organs are sure to produce invariably the same dreams. Space and time disappear, however, and naturally, because we can measure them only by the aid of our senses, and these are, for the time, inactive. Hence Dugald Stewart ascribes the manner in which a moment's dream often comprises a year, or a whole lifetime, to the fact that, when we are asleep, the images created by our imagination appear to be realities, while those which we form when we are awake are known to us to be mere fictions, and hence not subject to the laws of time.
It will not surprise us, therefore, to find that this activity of the mind, deprived of the usual means of making itself known to others by gesture, sound, or action, seeks frequently a symbolical utterance, and this is the grain of truth here also hid under the vast amount of rubbish, known as the interpretation of dreams. Troubles and difficulties may thus appear as storms; sorrow and grief as tears; troubled waters may represent pain, and smooth ice impending danger; a dry river-bed an approaching famine, and pretty flowers great joy to come, provided, always, we are disposed to admit a higher class of prophetic dreams. Such a view is supported by high authority, for since the days of Aristotle, great writers, divines as well as philosophers, have endeavored to classify dreams according to their nature and importance. The great reformer, Melanchthon, in his work on the soul, divided them into common dreams, void of importance; prophetic dreams, arising from the individual gifts of the sleeper; divine dreams, inspired by God either directly or through the agency of angels, and finally, demoniac dreams, such as the witches' sabbath. One great difficulty attending all such classification arises, however, from the well-known fact, already alluded to, that external sensations are by far the most frequent causes of dreams. Even these have been systematically arranged by some writers, most successfully, perhaps, in the work of Maine de Biran, but he overlooks again the numerous cases in which external noises and similar accidents produce a whole train of thoughts. Thus Pope dreamed of a Spaniard who impudently entered his library, ransacked the books on the shelves, and turned a deaf ear to all his remonstrances. The impression was so forcible that he questioned all his servants, and investigated the matter thoroughly, till he was finally forced to acknowledge that the whole transaction was a dream caused by the fall of a book in his library, which he heard in his sleep. A still more remarkable case occurred once in a hotel in Dantzic, where not one person only, but all the guests, without exception, dreamed of the sudden arrival of a number of travelers, who disturbed the whole house, and took possession of their rooms with unusual clatter and noise. Not one had arrived, but during the night a violent storm had arisen, causing doors to slam and window-shutters to flap against the house, noises which had aroused in more than fifty people precisely the same impressions.
VISIONS.
Concipiendis visionibus quas phantasias vocant.
Quintilian.
Visions, that is, the perception of apparently tangible objects in the outer world, which only exist in our imagination, have been known from time immemorial among all nations on earth. They are, in themselves, perfectly natural, and can frequently be traced back without difficulty to bodily affections or a disordered state of the mind, so that many eminent physicians dispose of them curtly as mere incidental symptoms of congestion or neuralgia. They may present real men and things, known beforehand, and now reproduced in such a manner as to appear objectively; or they may be ideal forms, the product of the moment, and incompatible with the laws of actual life. Persons who have visions and know nothing of their true nature, are apt to become intensely excited, as if they had been transferred into another world. The images they behold seem to them of supernatural origin, and may inspire them with lofty thoughts and noble impulses, but only too frequently they disturb their peace of mind and lead them to crime or despair.
When visions extend to other senses besides sight, and the peculiar state of mind by which they are caused affects different parts of the body at once, they are called hallucinations; most frequent among insane people, of whom, according to Esquirol, eighty in a hundred are thus affected, they are generally quite insignificant; while visions through the eye, are often accompanied by very remarkable magic phenomena. Thus the visions which great men like Cromwell and Descartes, Byron or Goethe, record of their own experience, were evidently signs of the great energy of their mental life, while in others they are as clearly symptoms of disease. Ascribed by the ancients to divine influence, Christianity has invariably denounced them—when not indubitably inspired by God, as in the case of the martyr Stephen and the apostle St. John—as works of the Devil. At all times they have been communicated to others, either by contagion or, in rare cases, by the imposition of hands, as they have been artificially produced. Thus extreme bodily fatigue and utter prostration after long illness are apt to cause hallucinations. Albert Smith, for instance, while ascending Mont Blanc, and feeling utterly exhausted, saw all his surroundings clearly with his eyes, and yet, at the same time, beheld marvelous things with the so-called inner sense. A Swiss who, in 1848, during a severe cold, crossed from Wallis to Kandersteg by the famous Gemmi Pass, eight thousand feet high, saw on his way a number of men shoveling the snow from his path, fellow-travelers climbing up on all sides, and rolling masses of snow which changed into dogs; he heard the blows of axes and the laughing and singing of distant shepherds, while his road was utterly deserted, and not a human soul within many miles. His hands and feet were found frozen when he arrived at last at his quarters for the night, and ten days later he died from the effects of his exposure. During the retreat of the French from Russia the poor sufferers, frozen and famished, were continually tormented by similar hallucinations, which increased their sufferings at times to such a degree as to lead them to commit suicide. Another frequent cause of visions is long-continued fasting combined with more or less ascetic devotion. This is said to explain why the prophets of the Old Testament were so vigorously forbidden to indulge in wine or rich fare. Thus Aaron was told: "Do not drink wine nor strong drink, thou nor thy sons with thee, when ye go into the tabernacle" (Levit. x. 9); Moses remained forty days, and "neither did eat bread nor drink wine," when he was on Mount Sinai (Deuter. ix. 9); the Nazarites were ordered not to "drink any liquor of grapes, nor to eat moist grapes or dried," and even to abstain from vinegar (Numbers vi. 3), and Daniel and his companions had nothing but "pulse to eat and water to drink" (Dan. i. 12), in order to prepare them for receiving "wisdom and knowledge and the understanding of dreams and visions."