We have no reason to disguise the fact that in the hypothesis which we have set up in order to explain the dream-work a part is played by what might be described as a ‘ daemonic’ element. We have gathered an impression that the formation of obscure dreams occurs as though one person who was dependent upon a second person had to make a remark which was bound to be disagreeable in the ears of this second one; and it is on the basis of this simile that we have arrived at the concepts of dream-distortion and censorship, and have endeavoured to translate our impression into a psychological theory which is no doubt crude but is at least lucid. Whatever it may be with which a further investigation of the subject may enable us to identify our first and second agencies, we may safely expect to find a confirmation of some correlate of our hypothesis that the second agency controls access to consciousness and can bar the first agency from such access.
When the state of sleep is over, the censorship quickly recovers its full strength; and it can now wipe out all that was won from it during the period of its weakness. This must be one part at least of the explanation of the forgetting of dreams, as is shown by an observation which has been confirmed on countless occasions. It not infrequently happens that during the narration of a dream or during its analysis a fragment of the dream-content which had seemed to be forgotten re-emerges. This fragment which has been rescued from oblivion invariably affords us the best and most direct access to the meaning of the dream. And that, in all probability, must have been the only reason for its having been forgotten, that is, for its having been once more suppressed.
XI
When once we have recognized that the content of a dream is the representation of a fulfilled wish and that its obscurity is due to alterations in repressed material made by the censorship, we shall no longer have any difficulty in discovering the function of dreams. It is commonly said that sleep is disturbed by dreams; strangely enough, we are led to a contrary view and must regard dreams as the guardians of sleep.
In the case of children’s dreams there should be no difficulty in accepting this statement. The state of sleep or the psychical modification involved in sleep, whatever that may be, is brought about by a resolve to sleep which is either imposed upon the child or is reached on the basis of sensations of fatigue; and it is only made possible by the withholding of stimuli which might suggest to the psychical apparatus aims other than that of sleeping. The means by which external stimuli can be kept off are familiar to us; but what are the means available for controlling internal mental stimuli which set themselves against falling asleep? Let us observe a mother putting her child to sleep. The child gives vent to an unceasing stream of desires: he wants one more kiss, he wants to go on playing. His mother satisfies some of these desires, but uses her authority to postpone others of them to the next day. It is clear that any wishes or needs that may arise have an inhibiting effect upon falling asleep. We all know the amusing story told by Balduin Groller of the bad little boy who woke up in the middle of the night and shouted across the night nursery: ‘I want the rhino!’ A better behaved child, instead of shouting, would have dreamt that he was playing with the rhino. Since a dream that shows a wish as fulfilled is believed during sleep, it does away with the wish and makes sleep possible. It cannot be disputed that dream-images are believed in this way, for they are clothed in the psychical appearance of perceptions, and children have not yet acquired the later faculty of distinguishing hallucinations or phantasies from reality.
Adults have learnt to make this distinction; they have also grasped the uselessness of wishing, and after lengthy practice know how to postpone their desires until they can find satisfaction by the long and roundabout path of altering the external world. In their case, accordingly, wish-fulfilments along the short psychical path are rare in sleep too; it is even possible, indeed, that they never occur at all, and that anything that may seem to us to be constructed on the pattern of a child’s dream in fact requires a far more complicated solution. On the other hand, in the case of adults - and this no doubt applies without exception to everyone in full possession of his senses - a differentiation has occurred in the psychical material, which was not present in children. A psychical agency has come into being, which, taught by experience of life, exercises a dominating and inhibiting influence upon mental impulses and maintains that influence with jealous severity, and which, owing to its relation to consciousness and to voluntary movement, is armed with the strongest instruments of psychical power. A portion of the impulses of childhood has been suppressed by this agency as being useless to life, and any thought-material derived from those impulses is in a state of repression.
Now while this agency, in which we recognize our normal ego, is concentrated on the wish to sleep, it appears to be compelled by the psycho-physiological conditions of sleep to relax the energy with which it is accustomed to hold down the repressed material during the day. In itself, no doubt, this relaxation does no harm; however much the suppressed impulses of the childish mind may prance around, their access to consciousness is still difficult and their access to movement is barred as the result of this same state of sleep. The danger of sleep being disturbed by them must, however, be guarded against. We must in any case suppose that even during deep sleep a certain amount of free attention is on duty as a guard against sensory stimuli, and that this guard may sometimes consider waking more advisable than a continuation of sleep. Otherwise there would be no explanation of how it is that we can be woken up at any moment by sensory stimuli of some particular quality. As the physiologist Burdach insisted long ago, a mother, for instance, will be roused by the whimpering of her baby, or a miller if his mill comes to a stop, or most people if they are called softly by their own name. Now the attention which is thus on guard is also directed towards internal wishful stimuli arising from the repressed material, and combines with them to form the dream which, as a compromise, simultaneously satisfies both of the two agencies. The dream provides a kind of psychical consummation for the wish that has been suppressed (or formed with the help of repressed material) by representing it as fulfilled; but it also satisfies the other agency by allowing sleep to continue. In this respect our ego is ready to behave like a child; it gives credence to the dream images, as though what it wanted to say was: ‘Yes, yes! you’re quite right, but let me go on sleeping!’ The low estimate which we form of dreams when we are awake, and which we relate to their confused and apparently illogical character, is probably nothing other than the judgement passed by our sleeping ego upon the repressed impulses, a judgement based, with better right, upon the motor impotence of these disturbers of sleep. We are sometimes aware in our sleep of this contemptuous judgement. If the content of a dream goes too far in overstepping the censorship, we think: ‘After all, it’s only a dream!’ - and go on sleeping.
This view is not traversed by the fact that there are marginal cases in which the dream - as happens with anxiety-dreams - can no longer perform its function of preventing an interruption of sleep, but assumes instead the other function of promptly bringing sleep to an end. In doing so it is merely behaving like a conscientious night-watchman, who first carries out his duty by suppressing disturbances so that the townsmen may not be woken up, but afterwards continues to do his duty by himself waking the townsmen up, if the causes of the disturbance seem to him serious and of a kind that he cannot cope with alone.
The function of the dream as a guardian of sleep becomes particularly evident when an external stimulus impinges upon the senses of a sleeper. It is generally recognized that sensory stimuli arising during sleep influence the content of dreams; this can be proved experimentally and is among the few certain (but, incidentally, greatly overvalued) findings of medical investigation into dreams. But this finding involves a puzzle which has hitherto proved insoluble. For the sensory stimulus which the experimenter causes to impinge upon the sleeper is not correctly recognized in the dream; it is subjected to one of an indefinite number of possible in
terpretations, the choice being apparently left to an arbitrary psychical determination. But there is, of course, no such thing as arbitrary determination in the mind. There are several ways in which a sleeper may react to an external sensory stimulus. He may wake up or he may succeed in continuing his sleep in spite of it. In the latter case he may make use of a dream in order to get rid of the external stimulus, and here again there is more than one method open to him. For instance, he may get rid of the stimulus by dreaming that he is in a situation which is absolutely incompatible with the stimulus. Such was the line taken by a sleeper who was subject to disturbance by a painful abscess on the perineum. He dreamt that he was riding on a horse, making use of the poultice that was intended to mitigate his pain as a saddle, and in this way he avoided being disturbed. Or, as happens more frequently, the external stimulus is given an interpretation which brings it into the context of a repressed wish which is at the moment awaiting fulfilment; in this way the external stimulus is robbed of its reality and is treated as though it were a portion of the psychical material. Thus someone dreamt that he had written a comedy with a particular plot; it was produced in a theatre, the first act was over, and there were thunders of applause; the clapping was terrific. . . . The dreamer must have succeeded in prolonging his sleep till after the interference had ceased; for when he woke up he no longer heard the noise, but rightly concluded that someone must have been beating a carpet or mattress. Every dream which occurs immediately before the sleeper is woken by a loud noise has made an attempt at explaining away the arousing stimulus by providing another explanation of it and has thus sought to prolong sleep, even if only for a moment.
XII
No one who accepts the view that the censorship is the chief reason for dream-distortion will be surprised to learn from the results of dream-interpretation that most of the dreams of adults are traced back by analysis to erotic wishes. This assertion is not aimed at dreams with an undisguised sexual content, which are no doubt familiar to all dreamers from their own experience and are as a rule the only ones to be described as ‘sexual dreams.’ Even dreams of this latter kind offer enough surprises in their choice of the people whom they make into sexual objects, in their disregard of all the limitations which the dreamer imposes in his waking life upon his sexual desires, and by their many strange details, hinting at what are commonly known as ‘perversions.’ A great many other dreams, however, which show no sign of being erotic in their manifest content, are revealed by the work of interpretation in analysis as sexual wish-fulfilments; and, on the other hand, analysis proves that a great many of the thoughts left over from the activity of waking life as ‘residues of the previous day’ only find their way to representation in dreams through the assistance of repressed erotic wishes.
There is no theoretical necessity why this should be so; but to explain the fact it may be pointed out that no other group of instincts has been submitted to such far-reaching suppression by the demands of cultural education, while at the same time the sexual instincts are also the ones which, in most people, find it easiest to escape from the control of the highest mental agencies. Since we have become acquainted with infantile sexuality: which is often so unobtrusive in its manifestations and is always overlooked and misunderstood, we are justified in saying that almost every civilized man retains the infantile forms of sexual life in some respect or other. We can thus understand how it is that repressed infantile sexual wishes provide the most frequent and strongest motive-forces for the construction of dreams.¹
¹ See my Three Essays on the Theory of Sexuality (1905d).
There is only one method by which a dream which expresses erotic wishes can succeed in appearing innocently non-sexual in its manifest content. The material of the sexual ideas must not be represented as such, but must be replaced in the content of the dream by hints, allusions and similar forms of indirect representation. But, unlike other forms of indirect representation, that which is employed in dreams must not be immediately intelligible. The modes of representation which fulfil these conditions are usually described as ‘symbols’ of the things which they represent. Particular interest has been directed to them since it has been noticed that dreamers speaking the same language make use of the same symbols, and that in some cases, indeed, the use of the same symbols extends beyond the use of the same language. Since dreamers themselves are unaware of the meaning of the symbols they use, it is difficult at first sight to discover the source of the connection between the symbols and what they replace and represent. The fact itself, however, is beyond doubt, and it is important for the technique of dream-interpretation. For, with the help of a knowledge of dream-symbolism, it is possible to understand the meaning of separate elements of the content of a dream or separate pieces of a dream or in some cases even whole dreams, without having to ask the dreamer for his associations. Here we are approaching the popular ideal of translating dreams and on the other hand are returning to the technique of interpretation used by the ancients, to whom dream-interpretation was identical with interpretation by means of symbols.
Although the study of dream-symbols is far from being complete, we are in a position to lay down with certainty a number of general statements and a quantity of special information on the subject. There are some symbols which bear a single meaning almost universally: thus the Emperor and Empress (or the King and Queen) stand for the parents, rooms represent women¹ and their entrances and exits the openings of the body. The majority of dream-symbols serve to represent persons, parts of the body and activities invested with erotic interest; in particular, the genitals are represented by a number of often very surprising symbols, and the greatest variety of objects are employed to denote them symbolically. Sharp weapons, long and stiff objects, such as tree-trunks and sticks, stand for the male genital; while cupboards, boxes, carriages or ovens may represent the uterus. In such cases as these the tertium comparationis, the common element in these substitutions, is immediately intelligible; but there are other symbols in which it is not so easy to grasp the connection. Symbols such as a staircase or going upstairs to represent sexual intercourse, a tie or cravat for the male organ, or wood for the female one, provoke our unbelief until we can arrive at an understanding of the symbolic relation underlying them by some other means. Moreover a whole number of dream-symbols are bisexual and can relate to the male or female genitals according to the context.
¹ Cf. ‘Frauenzimmer’ [literally ‘women’s apartment’, commonly used in German as a slightly derogatory word for ‘woman.’]
Some symbols are universally disseminated and can be met with in all dreamers belonging to a single linguistic or cultural group; there are others which occur only within the most restricted and individual limits, symbols constructed by an individual out of his own ideational material. Of the former class we can distinguish some whose claim to represent sexual ideas is immediately justified by linguistic usage (such, for instance, as those derived from agriculture, e.g. ‘fertilization’ or ‘seed’) and others whose relation to sexual ideas appears to reach back into the very earliest ages and to the most obscure depths of our conceptual functioning. The power of constructing symbols has not been exhausted in our own days in the case of either of the two sorts of symbols which I have distinguished at the beginning of this paragraph. Newly discovered objects (such as airships) are, as we may observe, at once adopted as universally available sexual symbols.
It would, incidentally, be a mistake to expect that if we had a still profounder knowledge of dream-symbolism (of the ‘language of dreams’) we could do without asking the dreamer for his associations to the dream and go back entirely to the technique of dream-interpretation of antiquity. Quite apart from individual symbols and oscillations in the use of universal ones, one can never tell whether any particular element in the content of a dream is to be interpreted symbolically or in its proper sense, and one can be certain that the whole content of a dream is not to be interpreted symbolically. A kn
owledge of dream-symbolism will never do more than enable us to translate certain constituents of the dream-content, and will not relieve us of the necessity for applying the technical rules which I gave earlier. It will, however, afford the most valuable assistance to interpretation precisely at points at which the dreamer’s associations are insufficient or fail altogether.
Dream-symbolism is also indispensable to an understanding of what are known as ‘typical’ dreams, which are common to everyone, and of ‘recurrent’ dreams in individuals.
If the account I have given in this short discussion of the symbolic mode of expression in dreams appears incomplete, I can justify my neglect by drawing attention to one of the most important pieces of knowledge that we possess on this subject. Dream-symbolism extends far beyond dreams: it is not peculiar to dreams, but exercises a similar dominating influence on representation in fairy-tales, myths and legends, in jokes and in folk-lore. It enables us to trace the intimate connections between dreams and these latter productions. We must not suppose that dream-symbolism is a creation of the dream-work; it is in all probability a characteristic of the unconscious thinking which provides the dream-work with the material for condensation, displacement and dramatization.¹
¹ Further information on dream-symbolism may be found in the works of early writers on dream-interpretation, e.g. Artemidorus of Daldis and Scherner (1861), and also in my own Interpretation of Dreams (1900a), in the mythological studies of the psycho-analytic school, as well as in some of W. Stekel’s writings (e.g. 1911).