The term for a repeated story element in literature is "motif." A motif is a recurring theme, subject, or idea that helps to develop and inform the text’s major themes. It can manifest through characters, images, dialogue, or situations, reinforcing the narrative's central ideas. Motifs provide depth and layers of meaning, allowing readers to draw connections between different parts of the story. By recognizing motifs, readers can gain insights into the author's intentions and explore the work's emotional and intellectual landscape more thoroughly.