SUPERNATURAL VISITATION
The Ghost is described as accompanying Scrooge and showing him scenes from his past, acting as a supernatural guide.
GHOST
They went, the Ghost and Scrooge, across the hall, to a door at the back of the house. ... The Spirit touched him on the arm, and pointed to his younger self, intent upon his reading. ... Scrooge looked at the Ghost, and, with a mournful shaking of his head, glanced anxiously towards the door.