in conjunction with the intensity of the stimulus, will in one case make it possible so to suppress the stimulus that it will not disturb the sleeper, while in another case it will force the sleeper to wake, or will assist the attempt to subdue the stimulus by weaving it into the texture of the dream. In accordance with the multiplicity of these constellations, external objective stimuli will be expressed more rarely or more frequently in the case of one person than in that of another. In my own case. since I am an excellent sleeper, and obstinately refuse to allow myself to be disturbed during sleep on any pretext whatever, this intrusion of external causes of excitation into my dreams is very rare, whereas psychic motives apparently cause me to dream very easily. Indeed, I have noted only a single dream in which an objective, painful source of stimulation is demonstrable, and it will be highly instructive to see what effect the external stimulus had in this particular dream.

I am riding a gray horse, at first timidly and awkwardly, as though I were merely carried along. Then I meet a colleague, P, also on horseback, and dressed in rough frieze; he is sitting erect in the saddle; he calls my attention to something (probably to the fact that I have a very bad seat). Now I begin to feel more and more at ease on the back of my highly intelligent horse; I sit more comfortably, and I find that I am quite at home up here. My saddle is a sort of pad, which completely fills the space between the neck and the rump of the horse. I ride between two vans, and just manage to clear them. After riding up the street for some distance, I turn round and wish to dismount, at first in front of a little open chapel which is built facing on to the street. Then I do really dismount in front of a chapel which stands near the first one; the hotel is in the same street; I might let the horse go there by itself, but I prefer to lead it thither. It seems as though I should be ashamed to arrive there on horseback. In front of the hotel there stands a page-boy, who shows me a note of mine which has been found, and ridicules me on account of it. On the note is written, doubly underlined, "Eat nothing," and then a second sentence (indistinct): something like "Do not work"; at the same time a hazy idea that I am in a strange city, in which I do not work.

It will not at once be apparent that this dream originated under the influence, or rather under the compulsion, of a painstimulus. The day before, however, I had suffered from boils, which made every movement a torture, and at last a boil had grown to the size of an apple at the root of the scrotum, and had caused me the most intolerable pains at every step; a feverish lassitude, lack of appetite, and the hard work which I had nevertheless done during the day, had conspired with the pain to upset me. I was not altogether in a condition to discharge my duties as a physician, but in view of the nature and the location of the malady, it was possible to imagine something else for which I was most of all unfit, namely riding. Now it is this very activity of riding into which I am plunged by the dream; it is the most energetic denial of the pain which imagination could conceive. As a matter of fact, I cannot ride; I do not dream of doing so; I never sat on a horse but once- and then without a saddle- and I did not like it. But in this dream I ride as though I had no boil on the perineum; or rather, I ride, just because I want to have none. To judge from the description, my saddle is the poultice which has enabled me to fall asleep. Probably, being thus comforted, I did not feel anything of my pain during the first few hours of my sleep. Then the painful sensations made themselves felt, and tried to wake me; whereupon the dream came and said to me, soothingly: "Go on sleeping, you are not going to wake! You have no boil, for you are riding on horseback, and with a boil just there no one could ride!" And the dream was successful; the pain was stifled, and I went on sleeping.

But the dream was not satisfied with "suggesting away" the boil by tenaciously holding fast to an idea incompatible with the malady (thus behaving like the hallucinatory insanity of a mother who has lost her child, or of a merchant who has lost his fortune). In addition, the details of the sensation denied and of the image used to suppress it serve the dream also as a means to connect other material actually present in the mind with the situation in the dream, and to give this material representation. I am riding on a gray horse- the colour of the horse exactly corresponds with the pepper-and-salt suit in which I last saw my colleague P in the country. I have been warned that highly seasoned food is the cause of boils, and in any case it is preferable as an aetiological explanation to sugar, which might be thought of in connection with furunculosis. My friend P likes to ride the high horse with me ever since he took my place in the treatment of a female patient, in whose case I had performed great feats (Kuntstucke: in the