I offer no excuse for multiplying these observations of hallucinatory phenomena, even at the expense of tedious repetition, for such studies give an insight into the mechanism of the hallucinations met with in the insanities and other pathological states. They offer, too, an insight into the basic process involved in dreams as these are a type of hallucinatory phenomena. It is by a study of hallucinations experimentally created, and others where we are in a position to know the causal factors, that we can learn the mechanisms underlying similar phenomena occurring in normal pathological conditions. As a rule in the latter conditions it is difficult to determine beyond question the true causal factors and, therefore, the particular subconscious processes involved. Such phenomena as I have presented justify the conclusion of the “new psychology” that the hallucinations of the insane are not haphazard affairs but the resultant of subconscious processes evoked by antecedent experiences. In conclusion, then, we may say that in artificial hallucinations as experimentally conducted, and in certain spontaneous hallucinations, we have two known factors; the causal factor (the antecedent experience) and the hallucinatory phenomenon—the effect. Intervening between the two is an inferred subconscious process of considerable complexity which is required to explain the causal connection. With the exact mechanism of hallucinatory phenomena we are not at present concerned, but only with the evidence of the actuality of a subconscious process, of its character as an intelligence, and with its intrinsic nature.
As to the last problem it is plain that further investigations are required and that the methods at present at our disposal for its solution leave much to be desired. All things considered a conservative summing up would be that the subconscious process may be both coconscious and unconscious.
IV. Subconscious intelligence underlying dreams. As is well known, Freud advanced the theory, now well fortified by numerous observations of others, that underlying a dream is a subconscious process which fabricates the conscious dream. According to Freud and his followers this subconscious process is always an antecedent wish and the dream is an imaginary fulfillment of that wish. This part of the theory (as well as the universality of an underlying process) is decidedly questionable. My own observations lead me to believe that a dream may be also the expression of antecedent doubts, scruples, anxieties, etc., or may be an answer to an unsolved problem. We need not concern ourselves with this particular question here. I refer to it simply to point out that its correct solution depends upon the correct determination of the true causal factor which is necessarily antecedently unknown and must be inferred. It is inferred or selected from the associated memories evoked by the so-called method of analysis. Hence it must be always an element open to greater or less doubt. Dreams are a type of hallucinatory phenomena and therefore we should expect that their mechanism would correspond more or less closely with that of other hallucinatory phenomena.
With the object in view of determining whether a dream could be produced experimentally and brought within the category of phenomena where the causal factor was antecedently known, and thus determine the actuality of a subconscious process as a necessary intervening link between the two, I made the following experiment. It should be noted that a wish fulfilment necessarily means a dream content so far different in form from the content of the wish itself that the postulation of a connecting link, conscious or subconscious, is required. I also sought, if a subconscious process could be postulated, to discover how elaborate and what sort of a work of constructive imagination a subconscious wish could evolve.
To a suitable subject while in a deep hypnotic trance state I gave a suggestion in the form of a wish to be worked out to fulfilment in a dream. It so happened that this subject was going through a period of stress and strain for which she sought relief. I also knew that she had a very strong desire to do a good piece of original psychological work and had advised her to take up the work as a solution of her difficulties. So, taking advantage of this desire, I impressed upon her, for the purpose of emphasizing the impulsive force of the desire, that she now had the longed-for opportunity as the culmination of her previous years of training to do the work. I then gave her the following suggestion: “You want to do a good piece of original work and your dream to-night will be the fulfillment of the wish.” No hint as to what form the dream fulfilment should take was given, nor had she any knowledge before being put into the trance state that I intended to make an experiment.
It is interesting to note how the dream has a logical form which is unfolded as an argument. This itself is an allegorical transcript of the reasons previously suggested to her for the particular solution of her problem.
The dream was a long one and into it were logically introduced as a part of the argument the actual distressing circumstances for the relief of which I had advised taking up the piece of psychological work as an outlet to her feelings and solution of her problem of life. I will give in detail only so much of the dream as contains the wish fulfilment (which became also a part of the dream argument), summarizing the remainder. The dream begins with an allegorical description of the great task involved in the study of psychology by all the workers of the world. The science of psychology is symbolized by a temple. “I dreamed I was where they were building a great temple or cathedral; an enormous place covering many acres of ground. Hundreds of men were building. Some were building spires, some were building foundations, and some were tearing down what they had built, some parts had fallen down of themselves. I was wandering around looking on.” Then she proceeds to help one of the builders who was building a particular part of the temple by bringing him material in the form of stones. This she had actually done, in real life, contributing much psychological material out of her own experiences. Many of these experiences had been very intimate ones from her inner life and had involved much suffering; hence the stones which she contributed in her dream were big and heavy and were beyond her strength to carry, so that she could only roll them,—and some were sharp and made her hands bleed, so that her contribution involved much suffering. This part of the dream was not only a prelude to the suggested wish fulfilment but, as interpreted, contained a wish fulfilment in itself.
Then there was interjected an allegorical but very accurate description of the distressing circumstances to which I have referred and for which, as a problem of life, the suggested work was advised as a solution. Then logically followed the wish fulfilment and solution. She heard the voice of the builder whom she had been helping say to her, “‘Now, here are all the materials and you must build a temple of your own,’ and I [she] said, ‘I cannot,’ and he said, ‘you can, and I will help you.’ So I began to build the stones I had taken him. It was hard work, but I kept on, and a most beautiful temple grew up.... All the stones were very brilliant in color, but each one was stained with a drop of blood that came from a wound in my heart. And the temple grew up; and I handled all the stones; but somehow the temple grew up of itself and lots of people were coming from all directions to look at it, and someone, who seemed to be William James, said, ‘It is the most valuable part of the temple,’ and I felt very proud....’” After another interjection of the distressing problem of her life just alluded to, the dream ends with the figure of “a beautiful shining angel with golden spreading wings and the word ‘Hope’ written on his forehead.” This figure “spread his lovely wings and rose right up through the temple and became the top of the spire, a gorgeous shining figure of Hope.”[[102]]
After this dream was obtained the subject, who had no knowledge that any suggestion had been given to induce the dream, was told to analyze the dream herself by the method of associative memories. As is customary in the use of this method, in which she had had considerable experience, the memories associated with each element of the dream were obtained. These memories all led back directly to her interest in psychology and desire to contribute some original work, and to her own life’s experiences. Every one of the dream-elements (temple, spires, foundations, stones, bleeding hands, drop of blood from the wound in her heart, etc.) evoked associative memories which justified the inference that these elements were symbolisms of past experiences or of constructive imagination.
That this dream was determined by, and the explicit imaginary fulfilment of the antecedent wish made use of in the experiment and motivated by the suggestion would seem to be conclusively shown.