An allegory is a narrative that uses symbols to represent ideas and qualities in order to convey a hidden or ulterior meaning. Unlike a metaphor which is a single symbolic comparison, an allegory develops a more complex system of symbolic relationships. Two common examples of allegories given are Pilgrim's Progress, which uses elements to represent the Christian journey through life, and Animal Farm, which symbolizes aspects of the Russian Revolution. The document then provides examples of paradox, hyperbole, and understatement as other literary devices.