A story that has a deeper or more general meaning in addition to its surface meaning. Allegories are composed of several symbols or metaphors. For example, in The Pilgrim's Progress, by John Bunyan, the character named Christian struggles to escape from a bog or swamp. The story of his difficulty is a symbol of the difficulty of leading a good life in the “bog” of this world. The “bog” is a metaphor or symbol of life's hardships and distractions. Similarly, when Christian loses a heavy pack that he has been carrying on his back, this symbolizes his freedom from the weight of sin that he has been carrying.