In ancient Egyptian religion , the forces of nature responsible for the creation and continuance of the universe.
They were personified abstractions whose meanings can be translated as "creative command," "intelligence," and "eternity." Hu and Sia served as crew members in the solar ship of the sun god Re , and they were also regarded as two of the divine attributes of every king. Heh was the personification of infinite space, portrayed as a squatting man with a sun disk on his head.