A letter to Marvin Minsky about this book:
I urge you tolook at a remarkable book by the English Puritain John Bunyan(1628-1688), "The Pilgrim's Progress", which is one of the great evangelical Christian classics, though clearly that is not why it interests me and should interest you (although I AM interested in the puzzle that is the religious sense, which even the irreligious feel, and this book can give remarkable insight into that as well).
Rather its fascination lies in the pilgrimage it depicts, or in the fact that human traits, vices, virtues, &c are PERSONIFIED as particular individuals who are their living and speaking epitome, and who are encountered along the way in revealing situations.
Bunyan's hero is appropriately named Christian. Someone once wrote that "Christian's journey is timeless as he travels from the City of Destruction to the Celestial City, meeting such characters as Pliable, Talkative, Giant Despair, Evangelist, Worldly-Wiseman, Faithful, Ignorance and Hopeful."
At first this personification is merely amusing, even a bit annoying (as caricatures or truly stereotypical people can be); but after a while I found myself enthralled because I realized that the effect of this odd literary device was to give unmatched insight into the nature of such traits. The force of the whole thing comes from the fact that one journeys about in - literally INSIDE of - what is both a comprehensive and finite moral and psychological landscape (a "psycho-topography"), very much as though one were INSIDE the human mind and your "Society of the Mind" was embodied in the set of actors. This is more or less the opposite or an inversion of the 'real world' of real people, who merely SHARE those attributes or of whom the attributes are merely PIECES; in "Pilgrim's Progress", by contrast, the attributes are confined in their occurrence to the actors who are their entire, unique, pure, and active embodiment, and humanness, to be recognized at all, has to be rederived or mentally reconstructed from the essential types.
The effect, for me, was something like experiencing a multidimensional scaling map that depicts the space of the set of human personality types, by being injected directly - mentally and bodily - into it by means of virtual reality technology.
So Bunyan's book has something of the interest to a psychologist, neuroscientist, or philosopher that Edwin Abbot's "Flatland" has to a mathematician.
I don't mean to overpraise "Pilgrim's Progress", of course; it was written for theological rather than scientific purposes, and has conspicuous limitations for that reason. But its interest to a student of the mind who looks at it at from the right point of view can be profound.
- Patrick Gunkel
