The contrast between the organic life of the beach and the sterile, dusty town is a recurring visual theme. The beach represents Kino's natural state, while the town represents the oppressive forces of commerce and law. When Kino enters the town to sell the pearl, he is stepping into enemy territory. Readers interested in setting as a narrative device often turn to the pearl pdf to study these descriptions. Steinbeck clearly demarcates the two worlds, showing that Kino's tragedy stems from trying to cross the boundary between them without the proper tools or protection.