Book of Doors. The solar boat: in the boat there is a ram-headed god with a solar disc representing the Sun god. This is the nocturnal form of the sun, a combination of Osiris and Ra. The god stands under a canopus protected by the great serpent Mehen, and holds a sceptre was. In front of him stands another serpent with protective functions. Also on the boat are the god Sia, in the bow, and the god Heka in the stern. The boat is pulled by four inhabitants of the Duat, the Dwawtyws. Above and below a theory of deities moves in the same direction as the boat. On the right is Merenptah with his cartouches.