Mansoul

I assume everybody here has read The Pilgrim's Progress. If not, go do it. And read the second part, which is in here, partway down. Search for "CHRISTIANA is here". The Christian's Progress describes the individual's journey, and part two is more of the journey together with others.

The second best allegory in English, after Pilgrim's Progress, is acclaimed to be The Holy War>, aka Mansoul, aka much longer titles--also by Bunyan.

The type of story is much different, of course, but it is still good reading. And worth thinking about. As Kipling noted, some things don't change much

The craft that we call modern,
  The crimes that we call new,
John Bunyan had 'em typed and filed
  In Sixteen Eighty-two.