A central theme of Antigone is the tension between individual action and fate. While free choices, such as Antigone’s decision to defy Creon’s edict, are significant, fate is responsible for many of the most critical and devastating events of the trilogy. By elevating the importance of fate, Sophocles suggests that characters cannot be fully responsible for their actions. It becomes difficult, for example, to blame Oedipus for marrying mother given his ignorance.
Antigone is not limited by fate, rather by the knowledge of her fate.