Mod insanity back into the game?

[Retomathic]

the only way a sanity meter can be useful if it were low monster appearances would come and vanish.
they were there in amnesia but weird enough they broke down doors and weren't sanity effects.

like whatever place you are, if your sanity is low things will happen. like eternal darkness, you saw things happen and after that everything was back to normal.

what if a door would open but later it's closed again because of your sanity