In Egyptian mythology, souls face a critical assessment after death, notably through the Weighing of the Heart. The deceased's heart is weighed against the feather of Ma'at, the goddess of truth and justice. If the heart is lighter than the feather, the soul gains entry into the afterlife; if heavier, it is devoured by the monster Ammit. This myth emphasizes moral integrity and the consequences of one’s actions during life, reflecting the Egyptians' value placed on truth, balance, and justice, offering insight into their cultural beliefs surrounding death and the afterlife.