Duat is the realm of the dead in ancient Egyptian mythology. It has been represented in hieroglyphs as a star-in-circle: 𓇽. The god Osiris was believed to be the lord of the underworld. He was the first mummy as depicted in the Osiris myth and he personified rebirth and life after death. The underworld was also the residence of various other gods along with Osiris. The Duat was the region through which the sun god Ra traveled from west to east each night, and it was where he battled Apophis, who embodied the primordial chaos which the sun had to defeat in order to rise each morning and bring order back to the earth. It was also the place where people's souls went after death for judgment, though that was not the full extent of the afterlife. Burial chambers formed touching-points between the mundane world and the Duat, and the ꜣḫ "the effectiveness of the dead", could use tombs to travel back and forth from the Duat.
