In these past few chapters it has become clearer that the one main thing that Dean and Sal have in common is their desire to be constantly moving on the road. They both would like to leave their "confusion and nonsense" behind. Dean and Sal are pretty much attempting to run away from everything they do not like about themselves, although what they do not realize yet is that this is not possible. They will only be able to find themselves and move on once they confront their problems instead of running away from them. What I find interesting is how literally the characters interpret the expression "move on", and how they believe they can actually LITERALLY run away from their problems. Once the characters realize that they cannot run away from their problems and must either confront them or change themselves for the better, they will be able to grow and understand who they are and how to actually solve their problems. Sal enjoys the fact that the road is straightforward and "pure", unlike anything else in life (according to him). The desperate desire to be constantly moving is what keeps Dean and Sal so closely binded together. I feel personally that Sal is able to acknowledge the sadness he feels in his life, but never seems to want to analyze the facts that have actually caused his sadness.