In Egyptian mythology, the feather of Ma'at symbolizes truth, justice, and cosmic order. During the Weighing of the Heart ceremony, the deceased's heart is balanced against Ma'at's feather to determine their worthiness for the afterlife. If the heart is lighter than the feather, it signifies purity and a life lived in harmony with Ma'at's principles. This judgment reflects the importance of maintaining moral and ethical balance in life, showcasing how adherence to truth and justice affects one's spiritual journey. The feather, representing divine order, underscores the values upheld by ancient Egyptian society.