In the beginning, the air and land were not separate, nor were masculine and feminine split apart. All was one, like an egg, full of potential and without limits. But slowly earth, being heavier, settled out of heaven. At first it floated about on the air, like a fish swimming near the surface of the water, but finally it formed entirely and sank beneath the heavens.
~Nihongi, Japanese Scriptures

Courtesy of GrannyMoon's Morning Feast

I really like this creationist story! I recently read a discussion about the egg, and how the yolk symbolizes the sun, also seen as God, and the white resembles the light of the moon, or the Goddess. I like this visual as well, with the Earth as the yolk surrounded by the white of the heavens. The yolk is full of (pregnant with) "the stuff of life" (literally, as the embryo, as well as figuratively), which fits in neatly with Earth imagery (as being alive, and teeming with life), and particularly with Gaia as the Goddess (the Earth as her pregnant womb). The white part would then be God, or the Heavens, in the style of Mother Earth, Father Sky.

I also really enjoy the idea of the egg representing the One, or All, the combination and joining of the God & Goddess as a single unit. Sometimes it is difficult for me to envision them as Both, as well as separate, and this fits very neatly together in my mind. It's a simple image, yet displays the idea perfectly.