Personification of Divine Knowledge or Omniscience, which together with Heka (divine power) and Hu, personification of Divine Utterance, were neccessary for the King´s creative powers during the Old Kingdom.
They are seen together with the falcon-headed sungod standing in the Sunboat as it travels across the sky; "in order to sustain the life of men, and all the cattle, and all the worms, [everything] he has created".
This points to the mythical concept that every sunrise is equal to the world being created anew, after having fought back all dangers on its way through the Underworld.
Sia is a deity without a special worship, belonging to the Heliopolitan Creation myth and its´ early sun cult.
