So you wanna know? What does "Gaia" mean anyway?

English Oxford Dictionary Definition:
1.Greek Mythology
The Earth personified as a goddess, daughter of Chaos.
2. The earth viewed as a vast self-regulating organism. (See Gaia hypothesis)
Gaia Hypothesis:
The theory, put forward by James Lovelock, that living matter on the earth collectively defines and regulates the material conditions necessary for the continuance of life. The planet, or rather the biosphere, is thus likened to a vast self-regulating organism.