That was very fun, but I think you need to add 1 more level as a "tutorial" on how the dust to same mechanic work. The introduction was so confusing that I was stuck there for a long time before I just randomly try pushing one of the items on top of a dust pile and it transforming the area from dust back to same.
I mean yeah, but also there isn't much other option.
it relies on you being familiar with the idea that background objects and especially dust piles can have an effect on things, and to be fair, there isn't much else you can do.
I do agree though that there isn't much explanation for it, either mechanically or lore-wise