Nut is considered one of the oldest deities among the Egyptian pantheon, with her origin being found in the creation story of Heliopolis, the theory of the origin of the universe. Nut was said to have existed when nothing else had yet been created. She then created all that had come into being. According to Egyptian mythology, it was she who first placed Ra, the Sun-God, in the sky.
She was originally the goddess of the nighttime sky, but eventually became referred to as simply the sky goddess. Her headdress was the hieroglyphic of part of her name, a pot, which may also symbolize the uterus. Other than her most common depiction in nude human form, Nut was also sometimes represented in the form of a celestial cow—the cow being a prominent symbol of nourishment—whose great body formed the sky and heavens, a sycamore tree, or as a giant sow, suckling many piglets (representing the stars). All these representations portray Nut as a protective mother and provider.