Lincoln/Booth
The brothers being named by their father as Lincoln and Booth represents how he chose to seal their fates by giving them names of enemies. Their father set the stage and they became merely players in his frivolous game.
Distorted Face
Lincoln gets a visit from the same customer every week, but he can never see his face. He speaks something deep to him before pulling the fake trigger on him at the arcade. This is a metaphor for someone seeking to take his life, but he cannot see his face. It becomes Booth.
Poverty
Lincoln and Booth's parents leaving them is a metaphor for the continuation of poverty within their family. That Poverty becomes generational when the kids aren't taught by their parents a value system with money.
Three-card Monte
The Three-card Monte hustle is a metaphor for Lincoln and Booth's relationship. Booth isn't quick enough to keep his eye on the cards and Lincoln isn't quick enough to keep an eye on his brother who eventually kills him.
Grace
The character of Grace is a metaphor for the actual undeserved favor that Booth needs in his life to feel loved and whole. So, when she rejects him he is completely lost. He is no longer Booth and thus transforms, allowing the wildness in him to take over.
