floor is invisible

“Floor is invisible” means having a depressive state so worse to the point where your room is a huge mess. The items, the clothes, or any others are piled up to a large amount, covering the floor.

Ariana: Why do you keep coming over to my house? The floor is invisible.
Justin: It’s all okay. I know how badly you’ve went through, Ariana. even if the floor is invisible i will understand.