Thing is this was written eight years before Bob resolved all that by coming to Christ. He was asking all the right questions. Then, he found the answer.
What Goldberg needs is deliverance from dualism. Maybe some Maritain's degrees of knowledge, or Dooyeweerd's sphere sovereignty.
There's a strange thing about how learning works. Familiar knowledge is a friendly stepping-stone to unfamiliarity. So here's Goldberg helping himself to some familiar knowledge on the way to understand Dylan. Alas, in the end, we learn more about Goldberg. Fragmentation, no doubt!
So, back to why you posted this in the first place--what does mysticism (there are all kinds) have to do with conservatism?