To know something, then, we must be scrubbed raw, the fasting heart exposed.

To trace the history of a river . . . is to trace the history of the soul, the history of the mind descending and arising in the body.

Fog rolled in like a form of sorrow. To live exiled from a place you have known intimately is to experience sensory deprivation. A wide-awake coma. ... The sea was a memory bank into which everything fell and was lost. I dove in but came out empty-handed.

A tree is a thought, an obstruction stopping the flow of wind and light, trapping water, housing insects, birds, and animals, and breathing in and out. How treelike the human, how human the tree.

From the clayey soil of northern Wyoming is mined bentonite, which is used as filler in candy, gum, and lipstick. We Americans are great on fillers, as if what we have, what we are, is not enough. We have a cultural tendency toward denial, but being affluent, we strangle ourselves with what we can buy. We gave only to look at the houses we build to see how we build *against* space, the way we drink against pain and loneliness. We fill up space as if it were a pie shell, with things whose opacity further obstructs our ability to see what is already there.

All that's known is this: there is no central processor, no single computer. Nothing that simple. Millions of neurons process information simultaneously and in parallel, not linearly, but the actual chemistry and electrical properties of that integrative process are still being mapped. Even so, it seems odd that during the evolution of brain circuitry and thinking, the ability to understand itself did not get wired in. Such built-in innocence seems like a terrible oversight.

If anything is endemic to Wyoming it is wind. This big room of space is swept out daily, leaving a bone yard of fossils, agates, and carcasses in every stage of decay. Though it was water that initially shaped the state, wind is the meticulous gardener, raising dust and pruning the sage.