Shaped a little like a loaf of French country bread, our brain is a crowded chemistry lab, bustling with nonstop neural conversations.Imagine the brain, that shiny mound of being, that mouse-gray parliament of cells, that dream factory, that petit tyrant inside a ball of bone, that huddle of neurons calling all the plays, that little everywhere, that fickle pleasuredome, that wrinkled wardrobe of selves stuffed into the skull like too many clothes into a gym bag.

We try to exile ourselves more and more from nature - not always consciously: We build houses; we dismiss nature; nature has to be outside, because we're inside. God forbid something like a cockroach comes inside, or some dust.

We ogle plants and animals up close on television, the Internet and in the movies. We may not worship the animals we see, but we still regard them as necessary physical and spiritual companions. Technological nature can't completely satisfy that yearning.

... love is an act of sedition, a revolt against reason, an uprising in the body politic, a private mutiny.

Symbolic of life, hair bolts from our head[s]. Like the earth, it can be harvested, but it will rise again. We can change its color and texture when the mood strikes us, but in time it will return to its original form, just as Nature will in time turn our precisely laid-out cities into a weed-way.

In the absence of touching and being touched, people of all ages can sicken and grow touched starved. Touch seems to be as essential as sunlight.

We're dabbling in eugenics all the time, breeding ideal crops to replace less aesthetic or nutritious or hardy varieties; leveling forests to graze cattle or erect shopping malls and condos; planting groves of a few familiar trees that homeowners and industries prefer.