(VERY mild spoilers for what the "object/goal" of the game is - which most people will pick up on early or even from the trailers):
I turned on my 7th laser last night and ascended to the top of the mountain to begin what I assumed would be the end-game.
What happens up there elevates the game from "beautiful, satisfying, brilliant puzzle game" into 10/10 GOTY territory. I dunno what I expected... but it wasn't that. Blow is now two for two when it comes to late-game reveals.
Everyone owes it to themselves to experience this on their own, without being spoiled, so if you see people start to talk about anything like this in the next coming days, run in the opposite direction until you're there.
And if anyone is curious about which 7 I turned on (spoilers equivalent to the trophy/achievement list):
(Desert, Quarry, Woods, Keep, Monastery, Jungle, Symmetry Island)
I'm curious what you found so revelatory there because I'd say what happened is more or less exactly what I expected to happen.