Dreamt I was opening a vault that kept rebuilding itself

I'm at the old bank, the one they closed in '87, and the dial spins but the tumblers keep re-forming before they drop. Hours go by. I can feel every pin with my fingertips but nothing locks into place — the whole door is patient, like it's got all the time in the world. Woke up more tired than I went to bed, but honestly? Best job I've had in years.