She disobeys Creon knowing full well that the announcement was made publicly, but still chooses to give her brother the burial she knows he deserves. One reason is that she is interested in family and religion, valuing them deeply and making them come first in her life. She seems to value burying her brother more than marrying her fiancé Haemon, who is Creon's youngest son. “I could have had another husband and other children by him, if one had been lost; But, having lost father and mother, where would I find another brother?” (Sophocles 150) The other reason is that the Greeks have a very eschatological vision, they believe that all the souls of the human race go to Hades and then are reincarnated. Their vision of the afterlife is cyclical. To get to Hades you had to have a proper burial, which is why Antigone worries that her brother has a proper burial