The multiplicity of human identity is not just a spiritual principle, it’s a biological fact—a basic ecological reality. ... only 10% of the cells in your body belong to you. The rest are the cells of bacteria and microorganisms that call your body home, and without these symbionts living on and within your physical self, you would be unable to digest and process the nutrients necessary to keep you alive. Your physical body is teeming with a microscopic diversity of life that rivals a rainforest. The insight of the Gaia Theory—that “the Earth system behaves as a single self-regulating system comprised of physical, chemical, biological and human components”—is as much a statement about our own physical bodies as it is about the planet. If we imagine the Earth as the body of a goddess, we can also imagine our own bodies as a sacred home to an ecologically complex and diverse array of microscopic life." -- Alison Leigh Lilly, "Naming the Water: Human and Deity Identity from an Earth-Centered Perspective