an interior view of a world

extradiegetic level

narrator’s level, the level at which exists a narrator who is not part of the story he tells.

diegetic level

level of the characters, their thoughts and actions.

metadiegetic level or hypodiegetic level

part of a diegesis that is embedded in another one and is often understood as a story within a story, as when a diegetic narrator himself/herself tells a story.