What does an allusion refer to?

An allusion refers to an implied reference to a familiar concept, person, place, or event that the audience is expected to recognize. This literary device enriches the text by drawing connections between the new content and widely known ideas, creating deeper meaning without the need for lengthy explanations. For instance, if a writer references a character or event from mythology, literature, or history, they assume the reader has enough background knowledge to make the connection and appreciate its significance. This allows authors to convey complex themes and emotions succinctly, engaging readers by invoking familiar cultural or historical context.