Through Oedipus's mistakes, the audience becomes cautious about his own traits of pride and its negative effects in their lives. Light versus darkness is a major theme of the play, compared through the ability to see and be blind. Having capable eyes does not mean that one can see the truth, nor does being blind mean that one is ignorant of the truth. The importance of being honest is crucial to the balance and peace of the world, as characters other than Oedipus, such as Jocasta and King Laius, would have avoided a fatal end if they had told the truth. The characters' mortal fate is the last, but strongest reminder of the impact of hubris on humanity.