The Nothing can be boredom. The box is never empty. An empty box is just infinite energy.

I like to call this "the vault". When I'm bored, my brain runs simulations of endless stories I could be writing. I like to mentally archive them. They settle, collect a few dust bunnies, until it's time to drag them out. It is infinite with scenes, wisdom, and creative flow. It's very good practice for creative people in my opinion.