How is Antigone's death by committing suicide significant to her beliefs?
Antigone's suicide is in keeping with the fatal and fatalistic atmosphere that surrounds her entire family. She professes devotion to her family, the doomed house of Oedipus. With the exception of her sister Ismene, they have all preceded her in death: her father, mother and two brothers (who killed each other); it seems fitting that she join them in death. As Creon tells her brutally at one point: 'Go and share your love with the dead'. She prefers to do that rather than go on living in a world which is largely meaningless to her. She has been entombed alive, but she prefers to hasten her end rather than wait for it.
Antigone dares all for her family, and sacrifices all. She had earlier accompanied her blind, disgraced, exiled father Oedipus, and then she buries her brother Polynices, whose corpse had been left exposed as he was deemed a traitor. By this latter action she ensures her own condemnation by the state. For this action she sacrifices her own life, her own hopes for marriage and children - she was betrothed to Haemon, son of Creon, the ruler who officially condemns her. She bewails this loss but does not waver from her preferred course of action.
Antigone is heroically dedicated to her ideals and carries them out to the letter. Her devotion to family and family duties is an all-consuming passion with her. She is utterly inflexible and and determined, one of the most towering characters in all of ancient Greek tragedy. Her suicide is one final act of defiance against the world that condemned her for carrying out her family duty in burying Polynices.
When Antigone refuses to obey the order of Creon to not bury her brother’s body, she makes what is in our world a political protest against what she considers an unjust and immoral law. Her refusal to obey Creon's edict to leave her brother's body to be consumed by wild animals leads to her capture and to her death. Although Creon decides to execute Antigone, he later agrees to set her free because the “mob” wants her to live. She could then, escape death. By taking her own life (she hangs herself), she again refuses to submit to Creon demands. Although she ends her life, she does so on her own terms, not on his.
Antigone death is a relationship with her suicide to her beliefs is that she was tired of obeying man laws and came to relaization that god laws were right so she went out to bury her brother and its a relationship with the suicide because she knew what creon was doing is wrong and the "mob" decides to let her go.