“Or better yet, we are the universe. I would go so far as to say that as human beings, we are less of a who and more of a when. We are a moment in time—when all of our cells have come together in this body. But our atoms were many things before, and they will be many things after. The air I’m breathing is the same air your ancestors breathed. Even what is in my body right now—the cells, the air, the bacteria—it’s not only mine. It is a point of connection with every other living thing, made up of the same kinds of particles, ruled by the same physical laws. “When you die, someone will bury you or turn your body into ashes. Eventually, you will return to the Earth. You already are a part of the Earth. What better reason do we have to take care of this Earth and everything on it than the knowledge that we are of one another?” Joan thought about this so often that it startled her now to realize she’d never put it into words before. What a thrill it was, to say it all. “The trees need our breath, and our breath needs the trees,” she continued. “As scientists we call that symbiosis, and it is a consequence of evolution. But the natural consequences of our connections to each other—that’s God, to me. I believe in it because I can see it with my own eyes. I know it exists. But I also believe in it because I want to believe in it. I want to spend my energy thinking not of how my actions might be frowned upon by a man in the sky, but how my actions affect every living and non-living thing around me. Life is God. My life is tied to yours, and to everyone’s on this planet. How does that not instantly make us more in debt to one another? And also offer us the comfort that we are not alone?”