What is the incentive moment in Antigone?

In Sophocles' tragedy "Antigone," the inciting moment occurs when the protagonist, Antigone, decides to defy the orders of King Creon and bury her brother Polyneices, who has been left unburied and unhonored because he fought against Thebes. Despite the threat of punishment, Antigone's love and sense of duty compels her to take action, setting in motion events that leads to a series of confrontations and tragic conclusions.