I keep dreaming about keys that don't fit

Third night this week I'm making my rounds, old key ring jangling, and every door I try to open swings wide before I even touch it — but the keys themselves are wrong. Wrong teeth, wrong weight, some of them just smooth brass rectangles like they forgot to be cut. And I keep trying them anyway, because that's the job. Woke up feeling like I'd misplaced something, but I can't name what. Maybe that's the point.