Metalepsis
Metalepsis is a figure of speech and narrative technique in which the boundaries between levels of discourse or narrative are crossed. In its broad sense, a moment of metalepsis transgresses the supposed separation between the story world and the outside world, or between different layers of narration. The term was popularized by the French narratologist Gérard Genette, who used it to describe instances where a discourse intrudes into or escapes from the diegesis (the fictional world) in ways that blur or collapse narrative levels.
Metalepsis can take several forms. Extradiegetic metalepsis occurs when the external narrator or a level outside
Commonly cited examples include direct address to the reader, a narrator stepping into the narrative to speak