I guess we all have a Lennie inside us; constantly dreaming about a magical place, craving for something as simple as having a rabbit and having the right to pat it. There are always people judging us based on the rules "society" establishes and wanting us to act like the rules suggest even when we think a girl's dress is pretty and we just want to admire it.
I really enjoyed the book and think Steinback did an excellent job defining the characters to a point that you even start to feel sorry for the character you know is going to cause all the troubles ( Curley's wife ).