A morality play is a theatrical work that seeks to teach moral or ethical lessons using allegorical characters. Synonyms for this type of play include allegorical drama, didactic drama, ethical drama, and moralistic play. These plays were popular in the medieval and Renaissance periods, with prominent examples including Everyman and The Castle of Perseverance. The themes of a morality play focused on Christian morality, with characters often representing virtues and vices. The plays were performed to educate the audience on moral values and to encourage virtuous behavior. Today, the term "morality play" is still used to describe works that seek to teach moral or ethical lessons through theatrical means.