[1.2.398] Minar's Past

Again, unnecessarily contentious.
However, I remember a text saying that the maple world may perhaps be a dream, but otherwise, I don't recall an npc distinctly saying it definitely is a dream.

I don't recall you being elevated to a position to make that call.

And, no, no NPC says that the world may be a dream.
The only section of Maplestory described as such is Future Ereve/Henesys, and that's explicitly stated.

Yes the Temple Keeper himself said something like that although I don't recall when he says that.

Dig through the .wz files and find it then.