The best answer is "It captures the beauty and serenity of life in Los Angeles, suggesting why Didion feels more content living there than she did in New York."
In this excerpt, Didion shows the beauty and peace she felt in L.A. and how this feeling prompted her to give up her apartment in New York.
In chapter 8 of the Red Badge of Courage, the thing that caused Henry to turn back to the frontline after fleeing is that He heard loud noises and was curious.
