I know everyone is preoccupied with the upcoming Part 17 and 18 finale but this has been bugging me.
In the Fireman's room in the (possibly) White Lodge, Andy looks up at one of a pair of windows in the ceiling to see the series of visions. I didn't really notice them the first time round (though they were there - I checked) but I can't get the idea out of my head that they look like two eyes, and that we and the characters in the scene are somehow inside a head, behind the eyes.
Andy's visions are projected like a movie in an old cinema and you can even see fluff on the edges, as if coming from an old-style projector that's not quite clean. To me it also looks like a floater in an eye.