I’m going to tell you precisely why I love Neil Gaiman’s work, and I’ll do it by breaking down one of my favorite short stories.
Pain changes your character. It’s important you know how that character handles it.
Your characters didn’t appear the moment you write the first page. Just like in your own life, they were influenced by someone else—for good or ill. Understanding why your characters respond the way they do is crucial to character development, and knowing who influenced them is a key part of that.