What does an allusion refer to?

An allusion refers to a passing reference to a specific work, event, or figure, which enriches the text by connecting it to something more familiar or significant. This literary device relies on the audience’s prior knowledge to make deeper meanings or associations, allowing writers to convey complex ideas succinctly. For instance, a character might make a remark that alludes to a well-known novel or historical event, inviting readers to draw connections between that reference and the context within the story. This layer of meaning enhances the reader's experience and understanding of the material without needing detailed explanation or elaboration on the referenced subject.