What does Antigone ultimately symbolize in the play?

Antigone ultimately symbolizes rebellion against unjust authority, as she defies King Creon's edict prohibiting the burial of her brother Polyneices. Her actions are motivated by her belief in the higher moral law of the gods and familial duty over the laws of man. This conflict between divine law and human law is central to the play and emphasizes the theme of individual conscience and moral obligation in the face of state power. Antigone's steadfastness in doing what she believes is right, despite the consequences, highlights the struggle against tyrannical authority and the importance of standing up for one's beliefs.