Everything is natural.

Darwin taught us that everything we are comes right out of nature. We don't need any "God" to interfere. And before that, when Enlightenment philosophers gave up on Christianity theology, they began to talk about natural theology and the laws of nature. Theologians have evolved into today's particle physicists except that, unlike the dwindling population of religious ones, they take their job seriously.

There's nothing supernatural about this world. Everything humans do is natural, including technology and our psychological problems and even thermonuclear war — as criminal as that is. This is still a common error in understanding what "nature" is. But when you live in a gay world for 20 years you become very familiar with how people abuse the word "natural". Homosexuals aren't "natural". Feminists aren't "natural". Black power isn't "natural". Many people use the term "natural remedy", for example, but it's more accurate to say "folk remedy" or "home remedy".

Nature is everything you experience, not just a shady glen. (We should probably distinguish between "natural" and "rustic" or "rural".) And there's some reason to suspect that nature is endlessly complex and chaotic (in the sense of "chaos theory"). We always think we've hit bottom in the search for subatomic particles, but every generation or so we're proven wrong. There may be no bottom. Or scale may be recursive, even infinitely. Like the century old science fiction stories about protons and electrons being little suns and planets.