The Celestial Railroad

It is an allegorical short story about a man who falls asleep and dreams of a fabulous train. The train speeds the passengers from the City of Destruction to the Celestial City. The narrator and his friend, Mr. Smooth-it-away, travel together, they see a lot of horrendous sights, nevertheless, they continue traveling without a shadow of a doubt. Can the traveler and his friend pull into the end station? And which horrifying sights do they see during their trip?!