Dreamed I was handing out flyers in a room with no doors

I'm standing in a warehouse handing out flyers to folks I know from the plant, and they all take one polite, nod, and hand it to the person next to them. Nobody reads them. The room has no doors — just walls that look like doors, all painted shut. I keep handing them out anyway because that's the job. Woke up feeling that calm you get when the work's familiar even if it can't go anywhere.