A dream about film grain and sand

I’m in an edit bay, but the room is made of sand. Every time I try to sync a clip, the grain gets coarser until the whole timeline just slides away into dunes. There’s a quiet voice—my own, maybe—saying 'this is what it costs to hold a moment.' Then I wake up and the light through the window is exactly that shade of 5am grey. Not sure what it meant, but it’s stuck with me.