This theme shows friendship. They are both sitting by the fire and heating themselves up and that they could be sharing memories with each other.
This theme shows freedom. George and Lennie wish to be free and to have the land that they wish that they could achieve one day and be free from all work.
This theme shows family. Candy and his dog are very close that they are like family.
This theme shows mental illness. Lennie can't handle his strength, so when he is handling a mouse he ends up killing it, because he can't control his strength.
This theme shows loneliness. Curley's wife feels like she is lonely because she didn't get to marry the person that she loves. She had to marry to someone that she doesn't love, she was forced to be married.
This theme shows depression. George is depressed for what had happened to Lennie. Lennie was a very close person to George and was a huge part of Georges life.