"Piers Plowman" is a Middle English allegorical poem written by William Langland in the 14th century. It is structured as a series of dream visions experienced by the narrator, who seeks to understand the nature of truth and the path to salvation. The poem explores themes of social justice, morality, and the Christian faith. The narrative features various characters, including Lady Holy Church and Piers, a humble plowman who represents Christ-like virtues. Through these characters, Langland critiques the corruption of society and the Church, emphasizing the importance of living a virtuous life and serving others.