ultimate confusion

I’d like to know the reason behind Prof. Ogden’s decision to choose All Tomorrow’s Parties. I find that he gets really excited about the book in lecture because it seems like he has so many ideas in his head and just spits them out in any order and I find it hard to follow along. Also, the confusion of the book itself doesn’t really help the situation. Like the way the novel shifts from character to character sometimes will leave me thinking..what did I just read!? Not to mention some of the language used. I guess there is some reason behind us reading it. I just haven’t figured out what that is yet.