Gaia /ˈɡeɪ.ə/

The ancestral mother of all life according to Greek mythology, revived in the 1970s by James Lovelock to describe a hypothesis that the Earth itself is a large self-regulating organism.

The theory doesn't have much support from the strict scientific perspective, but its poetic, metaphorical and cultural value offers a holistic planetary view of our planet which is indispensable.