Earth is our home ... the largest living creature in our solar system. The land, the water, the air, and all the things that live on and in them form a gigantic community, an enormous cell. Here fungi, eagles, toads, worms, grasses, mosquitoes, ferns, people, dolphins, spiders, oak trees, and lions — up to ten million separately distinguishable forms of life or species — share Earth's environments. Whatever happens to one part, for good or ill, ultimately affects us all, the whole Earth: our home of abundant riches and indescribable beauty.
How do we hold both the magnificence and tragedy of the world, as if we stand at a threshold with Janus, the Roman god of beginnings and endings, looking in two directions? ...How do we find the way if we can't see around the bend? ...In our time of disturbance and radical change, we are crossing a threshold, a portal, or an unseen bridge from one world to another. It could be said that the bridge is either collapsing beneath us, or being made as we walk together...