Shining or shining on is the phrase used by Dick Halloran to describe his and five-year-old Danny Torrance's ability to read minds and mentally converse with others who read minds. When Halloran talks to Danny privately he tells him:
"You shine on boy, harder than anyone I ever met in my life. […]. You got a knack. […] Me I've always called it shining. That's what my grandmother called it, too. She had it. We used to sit in the kitchen when I was a boy and have long talks without even opening our mouths" (11.7,9).
Halloran and Danny can also see things that happened in the past and things that might happen in the future. Later in the same scene, Halloran explains to Danny:
"What you got, son, I call it shinin on, the bible calls it having visions, and there's scientists that call it precognition. I've read up on it, son. I've studied on it. They all mean seeing the future." (11.78)