It will not be apparent at once that this dream originated under the influence, or rather under the compulsion, of a stimulus of pain. The day before I had suffered from furuncles, which made every movement a torture, and at last a furuncle had grown to the size of an apple at the root of the scrotum, and had caused me the most intolerable pains that accompanied every step; a feverish lassitude, lack of appetite, and the hard work to which I had nevertheless kept myself during the day, had conspired with the pain to make me lose my temper. 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, one might have expected some performance other than riding, for which I was very especially unfitted. It is this very activity, of riding into which I am plunged by the dream; it is the most energetic denial of the suffering which is capable of being conceived. In the first place, I do not know how to ride, I do not usually dream of it, and I never sat on a horse but once—without a saddle—and then I did not feel comfortable. But in this dream I ride as though I had no furuncle on the perineum, and why? _just because I don’t want any_. According to the description my saddle is the poultice which has made it possible for me to go to sleep. Probably I did not feel anything of my pain—as I was thus taken care of—during the first few hours of sleeping. Then the painful sensations announced themselves and tried to wake me up, whereupon the dream came and said soothingly: “Keep on sleeping, you won’t wake up anyway! You have no furuncle at all, for you are riding on a horse, and with a furuncle where you have it riding is impossible!” And the dream was successful; the pain was stifled, and I went on sleeping.