The concept of the weighing of the heart ceremony is the origin of the balance scale as the modern symbol of justice. In the weighing of the heart your heart was weighed against a feather! The feather represents "truth" and the persons heart represented there feelings and emotions as well as the deeds they had made throughout there lifetime. If your heart was heavier then the feather it meant you had been bad! I mean come on, isn't everyones heart heavier then a feather?!