This last chapter allowed me to understand once and for all the merging of the old South and new South, and how it took a toll on the Compson family. Mostly all the members of the family other than Caddy were unable to change their opinions and lifestyle in order to become part of the new South. Each character being somehow stuck in the past showed how difficult it was for them to live in the present.
The Compson's decline was inevitable, and the last chapter's clarity made me realize while I was reading and during the seminar that the Compson's were never going to move forward. I believe now at the end of the book that no matter if certain events didn't transpire, the Compson's would still end up where they are at the ending scene. Stuck in the past, unwilling and unbothered to move forward.