Ma'at
As mentioned in reference to the other Gods of the Underworld, Ma'at was mainly involved with the testing of the dead before they could enter the afterlife. This judgment took place in the Hall of Ma'at.
Ma'at was not a person in the same sense as the other Deities, but almost just a concept or idea. She was truth, logic, justice, and fairness. Her symbol was the feather, which a person's heart was weighed against in the Underworld. Anubis was responsible for the weighing, and if the heart did not balance against the feather of Ma'at, the soul would not go to the afterlife and would be eaten by a demon, Ammut. Without the order of Ma'at, chaos would reclaim the universe.
When depicted as a Goddess in artwork, she simply wore a feather in her head-dress to identify her. More often, she was simply drawn as a feather. In the temple of Karnak, there is a small shrine dedicated to Ma'at built by the female Pharaoh, Hatshepsut.

