This is just the way I look at it, so if you do not agree with some things guess what..To bad..
Alright anyway, here we go..
Gaia or Ge is the earth. She is not really a deity but more of a power. There are two accepted versions of the classical creation, Hesiod's and Ouid's. I however prefer Hesiod's version, but I will still tell you a little about both.
They both start out the same way, with the emergence of from Chaos. Chaos had a Parthenogenic birth (One Parent Birth), after this point they go in different directions, so I will break it down a little.
In Ouid's version you continue to see the hand of a creator at work. The creator populated Gaia with all the things you find today in nature, mountains, seas, flowers, ECT.
In Hesiod's version, my favorite, the first beings sprang into existence without cause or explanation. Gaia came first, the earth, then Tartarus, the lowest level of the underworld, then Eros, Erotic Love. Chaos continues giving birth by herself. She gives birth to Erebus and Nux. (more on them later post) In her sleep Gaia gives birth to Uranus, the universe, who comes alive as big and as powerful as Gaia, and Pontus, the sea. Uranus was so in love with, thanks to Eros, Gaia that he showers her with rain and that is how Gaia gives birth to the rest of creation. Gaia and Uranus give birth to the Titians, the Three cyclopes, and the three hundred armed Giants.
I have always believed that an oath sworn by Gaia is the strongest, because know one can escape the Earth.