In Egyptian religion, the weighing of the heart is a crucial judgment process determining a soul's fate in the afterlife. During this ceremony, the deceased's heart is weighed against the feather of Maat, the goddess of truth and justice. A heart lighter than the feather signifies a virtuous life, allowing entry into the Field of Reeds, while a heavier heart indicates wrongdoing, resulting in the soul being devoured by the demon Ammut. This highlights the theme of moral accountability and the importance of living a just life.