A theme is the central idea or underlying message in a work of literature, art, or music. It serves as a guiding principle that shapes the narrative and influences the audience's understanding. Common themes include love, conflict, and identity, which resonate across various cultures and time periods. In addition to literature, themes can also be found in films, plays, and visual arts, where they help convey deeper meanings and provoke thought. Understanding the theme enhances the appreciation of the work, allowing audiences to connect with the emotions and experiences portrayed by the creator.