"Consider his last day and let none presume on his good fortune until he find life, at his death, a memory without pain" These are the final lines of the play. What lesson do they contain?

In the final scene, alone on the stage, the Chorus asks the audience to remember the story of Oedipus, the greatest of men. He alone could solve difficult riddles and was envied my his fellows for his prosperity - but now the greatest of misfortunes has befallen him. The Chorus warns the audience that mortal men must always “look upon that last day always” (1529). Only after life can one be sure that one’s life is “secure from pain” (1530).