King Ay assumes priestly garb (above) to perform
the final funerary rite The Opening of the Mouth
for his predecessor, Tutankhamen. The dead king, reborn as Osiris,
could then join such immortals as Shu, god of the air. In the
papyrus opposite, Shu creates the world by separating the star-speckled
body of the sky-goddess from the prostrate earth-god.
The Pyramids and Sphink by Desmond Stewart