The Pilgrim’s Progress, religious allegory by the English writer John Bunyan, published in two parts in 1678 and 1684. The work is a symbolic vision of the good man’s pilgrimage through life. At one time second only to the Bible in popularity, The Pilgrim’s Progress is the most famous Christian allegory still in print. In order to become a Christian we must put on Christ by being baptized into Jesus Christ (Galatians 3:27) for the forgiveness of our sins (Acts 2:38). Jesus Himself said all believers must be baptized (Mark 16:15-17) in His name (Colossians 3:17), to be born again of the water [baptism] and [Holy] Spirit (John 3:5). Most scholars agree to these facts.