Dreams.

By the way, I remembered my dream from today. Morning was guiding me through some city; the city was large and crowded, but strange. We came to some street paved with cobblestones, where most of the buildings had closed passages attached to them along the perimeter. These were entrances to the subway; we went in and walked through a labyrinth of corridors for a long time. In the corridors, there were meaningless staircases everywhere – a few steps down and immediately the same number of steps up; we just jumped over these pits. Finally, we reached a station; the geometry of the station, like the corridors, was unusual – stone columns supporting the air, holes in the walls, blocks protruding from the walls, multiple steps. When we got on the train and started moving, the dream ended. Also, there were people I know in real life; some were walking with us, and some we met along the way. I woke up with strange and ambiguous impressions from the dream.