What do these lines from Sophocles's Antigone tell us about Antigone's character?

ANTIGONE:
And yet good hope is mine that I shall find
A welcome from my sire, a welcome too,
From thee, my mother, and my brother dear;
From with these hands, I laved and decked your limbs
In death, and poured libations on your grave.
And last, my Polyneices, unto thee
I paid due rites, and this my recompense!
Yet am I justified in wisdom's eyes.
For even had it been some child of mine,
Or husband mouldering in death's decay,
I had not wrought this deed despite the State.