Answer:
Theme is a statement about an abstract idea expressed in a work of art.
Step-by-step explanation:
When any work of literature is made or written, there will always be a central theme underlying within the story. Even if there is no central theme, there will at least be a hint of a simple theme in it. Themes are the underlying focus or aim of the literary works. And it is these themes that readers and others will be able to understand the idea behind the making or writing of the story or poem or anything. In short, a theme of any literary work of art is a statement about the abstract idea in a work of art.