Well, an ESTP has the same four top functions as an INFJ but in reverse order. That's just something to ponder. I haven't looked deeply enough into the matter, particularly Burroughs the man, to develop a nuanced opinion either way. On a more abstract note, however, introverted intuition can basically be conceived of as this panoply, rather visual assortment of motifs. The Hail to the Thief album cover tends to convey what I mean especially well. Yes, As I Lay Dying is definitely solidly within that period of core Faulkner. There's an excellent biography, One Matchless Time, about Faulkner, with exegeses of around two dozen novels, by Jay Parini. I actually own that one because, one, it only ran one dollar and, two, it provides ongoing references and explanation to Faulkner.