2. Because the author of Pilgrim's Progress is the main representative of oppression and persecution, john bunyan exposed the broad masses of people's heroes in society at that time. In order to save the suffering compatriots from pain, Bunyan spared no effort to publicize the salvation doctrine contained in Christianity. The novel he created is based on the Christian salvation plan. Therefore, the characters in Pilgrim's Progress mainly go through various stages, such as original sin, conversion, atonement, belief in the Lord and salvation. John bunyan is a famous English essayist and novelist, and his work Pilgrim's Progress is called the most absurd fable by the world literary world.