As you know i think : Santa Fe is a town,
Don't forget the album 'Blaze of Glory' was inpired by the movie ' Young guns 2' ; so you just have to understand this song with the words are in it ! i mean it's just a story about bandits in the wild west, one of them (jon) is telling things about the world can turned a good man bad and the opposite, and on the way to Santa Fe, where someone and something are waithing for him i presume ! he can't say if he'll still alive after this duel, and he's afraid for his spirit, he see this duel like the end, the judgement day, and he's afraid because life has make him some bad things ... ! so will he go to paradise or to the hell after what will happen in Santa Fe ??? what will be the judgement ??? well; i did my best, i hope it's a little bit better in your mind ! i don't think it's realy clear, never mind