Danny even manages to anticipate what is about to happen by writing “redrum” on the bathroom door because this is where the murder will take place. The separation of Danny's alter ego voices into manifestations of Tony and Jack, through the presence / absence of his wagging finger, fits very well throughout the film.

Why does Danny call The Shining Tony?

Tony was the imaginary friend of Danny Torrance. Because he has the "Shining," it allows him to detect spirits and thus makes him a target of the Overlook Hotel.

Is Danny possessed in The Shining?

Danny's possession by Tony includes his soft-spoken voice deepening with some harsh gloom and a bouncing puppetry pointer finger.