There were two groups of people, and they looked the same. As if they had been duplicated in a transporter accident or something. But one group was persuing the other for some reason that I don't remember. And I don't remember if I was the persued or the persuing, or if I was rooting for one or the other. But anyway
There was an elevator to a deep underground place. More than 10, less than 100 floors underground. When you came out it didn't seem underground. There was a bright sky overhead, and then paths that went off different directions. Supposedly this place was infinite, and maybe hyperbolic. There was a lake in the distance. We had been off exploring a maze of gullys in a white plateau, sort of like Crapi MAP02 or the glacier in Subnautica Below Zero, before heading back to the elevator because there was chasing to be done, and we needed to find the other group before they came down here and disappeared into the infinity-ness.
Later I dreamt that I was super constipated, and had this big rock-hard belly. Or at least part of it was rock-hard. I could move the hard part around, which was kinda weird.