“A narrator is the speaker or ‘voice’ of the narrative discourse (Genette 1980 : 186). He or she is the agent who establishes communicative contact with an addressee (the ‘narratee’), who manages the exposition, who decides what is to be told, how it is to be told (especially, from what point of view, and in what sequence), and what is to be left out” (SamperioN3.1.1).
Narration is crucial in storytelling because it can change the direction of the story at any given time. For example, while writing this blog entry, my audience is subject to my direct thoughts and opinions towards literature. However, I am fully capable of changing the topic to something arbitrary such as math and sciences. By entering the head of the narrator, anything can occur because the narrator can change the time of the events taking place as well. The narrator can flash back to the past or give an internal opinion on a character that they are currently speaking to. Unlike a homodiegetic narrator, a heterodiegetic narrator does not know what the characters thoughts are, and therefore can’t deliver the same in depth characterization.