Last night I dreamed the warehouse had no machines

I'm walking the old warehouse floor and every forklift's just gone. Racks still full, pallets still stacked, hydraulic lines hanging dry with nothing at the end of them. I keep hearing that whine they make when you lift a heavy load, but it's coming from somewhere behind me I can't turn around to see. Woke up with oil on my hands like I'd been pulling an engine apart in my sleep.