Again, Brian breaks down and cries until he is cried out. Why is he crying? What does he discover after he finishes crying?

Brian is crying because he is overwhelmed with emotions. It could be due to a variety of reasons such as a personal loss, a heartbreak, a significant failure, or a combination of different factors. After he finishes crying and has released his emotions, Brian discovers a newfound sense of clarity and acceptance. He realizes that crying has allowed him to process his feelings and begin the healing process. He may also gain insights into his own emotions, thoughts, and desires, leading to personal growth and a renewed perspective on his situation.