Collapsing magic building

Date: 8/23/2021

I am in a large building that takes advantage of magic. It’s an industrial style building, or an office or academic building. One floor is a pocket dimension that is collapsing. On the other snide, I see wild images like a whale swimming through the air, and people trying to escape. On the outside, it’s more mundane. People are jumping off a ledge to get out, but gently floating to the ground. Remnants of the pocket dimension come with them. One person lands on shelving from a bookstore or library. They know this is unreal, but decide to go deeper instead of jumping off. They are trapped for eternity in an infinite library with every possible book, but are pleased with their decision. On the third floor of a staircase, I try to escape. When I climb down the stairs. I find myself back on the third floor again. It’s an infinite loop. Another person takes an elevator, but the elevator is entirely filled with sea water. Other dream fragments: I buy ephemera related to old magazines. The cover for the first appearance of a superhero. The packing slip for the first appearance of an rpg, etc. These are also magical somehow, and expand. Telling someone about my cats. In the building, lights flicker at regular intervals when something big happens on another floor. Jumping and landing on something unlikely. A perfectly rectangular meadow. Two gold pillars.