The Pilgrim's Progress is a 1678 Christian allegory by John Bunyan. The work is divided into two parts, telling the stories of two journeys from the "City of Destruction" to the "Celestial City." In the first book, Christian is burdened by the knowledge of sin after reading the bible. He leaves his family behind, traveling to the Celestial City. Along the way he meets Evangelist, Jesus (as Good-Will) and Hopeful as he struggles through numerous temptations and challenges. In book two, the rest of Christian's family completes a similar journey.