Shu is an ancient Egyptian god associated with air and light. He is often depicted as a man holding a feather, symbolizing the air and the sky. In Egyptian mythology, Shu is the son of Geb, the earth god, and Nut, the sky goddess. He plays a crucial role in separating his parents, allowing the earth and sky to exist independently. Shu is also considered a protector of the pharaohs and is linked to the concept of balance in the universe. His name means "emptiness" or "air," reflecting his role in maintaining the space between the earth and the heavens.