Foreshadowing in 'The Scarlet Ibis' reveals the absence of Doodle in the narrator's life.
Foreshadowing in literature is a literary device where an author hints at certain plot developments that will unfold later in the story. In the excerpt from 'The Scarlet Ibis,' sentence 4 foreshadows that Doodle is no longer present in the narrator's life. The mention of remembering Doodle when the grindstone turns implies a sense of loss or absence.