When you give yourself to places, they give you yourself back; the more one comes to know them, the more one seeds them with the invisible crop of memories and associations that will be waiting for when you come back, while new places offer up new thoughts, new possibilities. Exploring the world is one the best ways of exploring the mind, and walking travels both terrains.

When someone doesn't show up, the people who wait sometimes tell stories about what might have happened and come to half believe the desertion, the abduction, the accident. Worry is a way to pretend that you have knowledge or control over what you don't--and it surprises me, even in myself, how much we prefer ugly scenarios to the pure unknown. Perhaps fantasy is what you fill up maps with rather than saying that they too contain the unknown.

In her novel Regeneration, Pat Barker writes of a doctor who 'knew only too well how often the early stages of change or cure may mimic deterioration. Cut a chrysalis open, and you will find a rotting caterpillar. What you will never find is that mythical creature, half caterpillar, half butterfly, a fit emblem of the human soul, for those whose cast of mind leads them to seek such emblems. No, the process of transformation consists almost entirely of decay.

They are all beasts of burden in a sense, ' Thoreau once remarked of animals, 'made to carry some portion of our thoughts.' Animals are the old language of the imagination; one of the ten thousand tragedies of their disappearance would be a silencing of this speech.

Perhaps walking is best imagined as an 'indicator species,' to use an ecologist's term. An indicator species signifies the health of an ecosystem, and its endangerment or diminishment can be an early warning sign of systemic trouble. Walking is an indicator species for various kinds of freedom and pleasures: free time, free and alluring space, and unhindered bodies.

[In mountaineering, if] we look for private experience rather than public history, even getting to the top becomes an optional narrative rather than the main point, and those who only wander in high places become part of the story.

Of course women's walking is often construed as performance rather than transport, with the implication that women walk not to see but to be seen, not for their own experience but for that of a male audience, which means that they are asking for whatever attention they receive.

The famous Zen parable about the master for whom, before his studies, mountains were only mountains, but during his studies mountains were no longer mountains, and afterward mountains were again mountains could be interpreted as an allegory about [the perpetual paradox that when one is closest to a destination one is also the farthest).

I grew up with landscape as a recourse, with the possibility of exiting the horizontal realm of social relations for a vertical alignment with earth and sky, matter and spirit. Vast open spaces speak best to this craving, the spaces I myself first found in the desert and then in the western grasslands.