I remembered this movie ('Dream' Kurosawa Akira) that I watched a long time ago while thinking about dreams
It would be helpful to you guys. *Here's the link https://youtu.be/DrVgtb-LYX4
and there's another short movie. It's a recent movie. When you see from 16:40, you can see the scene of this world vs the underworld.
I love these two world's contrast