Shu (Su) was the god of dry air, wind and the atmosphere. He was also related to the sun, possibly as an aspect of sunlight. He was the son of the creator god, father of
the twin sky and the earth
deities and the one who held the sky off of the earth. He was one of the gods who protected Ra on his journey through the underworld, using magic spells to ward off
Ra's enemy, the snake-demon Apep. As with other protector gods, he had a darker side - he was also a god of punishment in the land of the dead, leading executioners and torturers to kill off the corrupt souls. His name might be derived from the word for
dryness -
shu, the root of words such as 'dry', 'parched', 'withered', 'sunlight' and 'empty'. His name could also mean 'He who Rises Up'.