The subject of walking is, in some sense, about how we invest universal acts with particular meanings. Like eating or breathing, it can be invested with wildly different cultural meanings, from the erotic to the spiritual, from the revolutionary to the artistic.

I was not going to surrender to the status quo and corporate insistence that ordinary people have no power and influence.

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.

For many years, I have been moved by the blue at the far edge of what can be seen, that color of horizons, of remote mountain ranges, of anything far away. The color of that distance is the color of an emotion, the color of solitude and of desire, the color of there seen from here, the color of where you are not. And the color of where you can never go.

How will you go about finding that thing the nature of which is totally unknown to you?

If sorrow and beauty are all tied up together, then perhaps maturity brings with it not what Nabhan calls abstraction, but an aesthetic sense that partially redeems the losses time brings and finds beauty in the faraway.

People rescue each other. They build shelters and community kitchens and ways to deal with lost children and eventually rebuild one way or another.