Lucas has revealed that the jedi had a hidden agenda when he commented on the films. He talked about how Luke was lied to believe he was training to get revenge on the man who killed his father, who killed his mentor obi wan. They were training him to kill his own father because yoda and obi wan could not bring themselves to destroy him. Lucas said his films are not as simple as people think, good vs. evil, and said he would show how a loved and loving person in the prequels could turn to evil. Their are a lot of grey areas, morality and perception. Lucas biggest message is the same one that is in world myth, and the bible that the darkness comes from within. That we enter the labyrinth to slay the monster, and find that the monster is within us. Star wars is more about inner struggle, than outer struggle.