Literature is often peppered with symbols. Symbols are objects, characters, or events that represent an abstract idea or concept that might not have a physical existence. Some symbols are culturally universal, like a heart representing love or a dove depicting peace. Meanwhile, some symbols are specific to a work or an author's style. Take, for example, the green light in 'The Great Gatsby'. It's merely a light at the end of a dock, but to Jay Gatsby, it symbolizes his dreams and hopes for the future with Daisy.