The central meaning or dominant idea in a literary work. A theme provides a unifying point around which the plot, characters, setting, point of view, symbols, and other elements of a work are organized. It is important not to mistake the theme for the actual subject of the work; the theme refers to the abstract concept that is made concrete through the images, characterization, and action of the text. In nonfiction, however, the theme generally refers to the main topic of the discourse.