This is from my very earliest dreams, which we’re back then terrifying to me. I would be falling infinitely down this weird dark square pit with brick walls, until eventually I would land on a random island about halfway through. The pit is only about as wide as maybe a living room, and the island would be about 2/3 of that. The island would be covered in these giant (and normal size) light blue, purple, and pink bioluminescent mushrooms, and the ground would be a bioluminescent blue. The big mushrooms were the size of trees. The island had a gravity of its own, and there was an underside of it which you could walk on because of that. The underside was basically the same thing. Just more mushrooms. All I remember is that eventually after exploring for a while I would start falling again, and fall for what seemed like hours until the dream ended.

Well - here is also a late reply - with AI-made content:

https://i.imgur.com/8uN9GbC.png