"The Demolished Man was a novel that had fascinated De Palma
since the late 1950s and appealed to his background in mathematics
and avant-garde storytelling. Its unconventional unfolding of plot
(exemplified in its mathematical layout of dialogue) and its stress on
perception have analogs in De Palma's filmmaking." — Wikipedia
This, together with the Cuernavaca balcony in Deschooling MIT, is
perhaps enough of a clue for mystified theologians on St. Peter's Day.