"Well, you know, Doc, when something happens, you can leave a trace of itself behind. Say like, if someone burns toast. Well, maybe things that happen leave other kinds of traces behind. Not things that anyone can notice, but things that people who "shine" can see. Just like they can see things that haven’t happened yet. Well, sometimes they can see things that happened a long time ago. I think a lot of things happened right here in this particular hotel over the years. And not all of ‘em was good."
The Shining (1980)