pilgrim's progress from world to that which Is to come is a christian allegory
If you live in an area where Christians are persecuted, consider to install and run an app that allows you to use the Internet anonymously before installing the app and downloading audio files from The Pilgrims Progress.
The Pilgrim's Progress from This World to That Which Is to Come is a Christian allegory written by John Bunyan and originally published in February 1678. It is regarded as one of the most significant works of religious English literature, has been translated into more than 200 languages, and has never been out of print.