His character is basically a cynical loner who realizes the importance of being part of a group and

His character is basically a cynical loner who realizes the importance of being part of a group and helping for the common good, compromising and sacrificing his own welfare for those of others. I had a list of about thirty-five themes that I wanted to explore in the film, and giving up your own personal gratification for the good of others was one of them.

— George Lucas