I dreamt that I was preparing an important lecture. It was divided into four or five parts, some of which were rather dramatic. At some point I recorded the lecture. The recording was supposed to help me along during the lecture itself. It consisted of a long tube. The walls of uneven thickness were yellowish in color. The diameter of the tube also changed from time to time. I remember cutting it into the key parts, but I was worried that I would mix the parts during the lecture. It was too important to me for any mishaps. When I woke up in the middle of the night, I wondered how the recording would help me. I could not figure out how the tube was to be used. I could not figure out how it was made, either. Did I extrude it through my mouth, as its profile would suggest? Completely confused, I had hard time falling asleep again. Perhaps it was the unbearable heat.