The author wants the reader to think, and most of all continue reading the book in order to understand something.
plot
When an author directly addresses the reader in a text, it is called breaking the fourth wall.
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Mood
Foreshadowing is where the author tells the reader something, but the character doesn't know it. The reader knows something is coming before the character does.
The author might hint at an idea rather directly state it.
Foreshadowing affects the reader's anticipation and expectation for what will happen next in the story. It creates suspense and can help build tension as the reader tries to piece together the clues and predict the outcome. It also adds depth to the narrative by suggesting there are underlying themes or connections that will be revealed later on.
When a postmodern writer or the story's narrator begins to directly address the reader it is an example of metafiction, where the narrator intentionally exposes himself or herself as the author of the story.
Third person, I think, is what youare looking for.
the author mgiht hint at an idea rather than state it directly
Foreshadowing is the literary device where the author gives a warning or indication of a future event in the story. It helps create suspense and build anticipation for the reader.
Lyric poetry, it doesn't tell a story and it expresses the author's feelings directly to the reader.