The Hall of Judgement, also known as the Hall of Ma'at is believed to be where souls of the dead travel to have their hearts weighed.
The Ancient Egyptians believe that the souls of the dead travel on the river of night until the Second Cataract, the Hall of Judgement. There, the heart of the dead, their ib, is weighed on the scales of Anubis against the Feather of Truth. If the ib weighs more than the feather, he is cast into oblivion by making Ammit the Devourer devour his heart. If it weighs less or equal, he is sent into Paradise (Aaru) on the seventh house of night. Osiris sits on the throne casting orders to the Gods of Judgement. They are forty-one in number and each interrogates the dead for one crime.