The Pilgrim's Progress is one of the most significant works of religious English literature, written by John Bunyan in 1678. It is an allegorical novel structured as a dream sequence. The story follows the spiritual journey of the protagonist, Christian, as he leaves the City of Destruction and travels toward the Celestial City (Heaven). Along the way, he encounters vividly named personifications of vices and virtues, such as Faithful, Giant Despair, and Apollyon. The novel is a profound exploration of faith, temptation, and salvation, serving as a powerful guide to Christian doctrine and morality.