With so many complex and interesting characters in Atonement, this post could go on forever, so I am going to focus on Briony, because of her various and contrasting validations for existence throughout the novel.
I would like to start out by saying that I related to Briony throughout the first part of this novel in many ways. I myself have experienced the intense and difficult emotional transition from "childhood" to something beyond it. I also share her passion for writing and her desire to find a real life experience to bring truth to her works. I found this passage extremely revealing: