Godith is the one true dragon who lived before time started and will be here when time ends. She created the stars and planets with a single breath of fire, along with the dragons themselves. Godith is suspected to be the dragons' and Fain's only god. Her name, "Godith", the way she created everything, and the fact that several times throughout the books characters might say "You are one with the auma of Godith".
The legend of creation is that Godith in one almighty outgoing breath (white fire) created the universe. Things like the Earth were created when this "white fire" cooled down to a low enough level. All dragons names start with the letter G because they want to tribute Godith.