What a mystery is the air, what an enigma to see these human senses! On the one hand, the air is the most pervasive presence I can name, enveloping, embracing, and caressing me both inside and out, moving in ripples along my skin, flowing between my fingers, swirling around my arms and thighs, rolling in eddies along the roof of my mouth, slipping ceaselessly through throat and trachea to fill the lungs, to feed my blood, my heart, my self. I cannot act, cannot speak, cannot think a single thought without the participation of this fluid element. I am immersed in its depths as surely as fish are immersed in the sea.
Yet the air, on the other hand, is the most outrageous absence known to this body. For it is utterly invisible. I know very well that there is something there—I can feel it moving against my face and can taste it and smell it, can even hear it as it swirls within my ears and along the bark of trees, but still, I cannot see it. I can see the steady movement it induces in the shapeshifting clouds, the way it bends the branches of the cottonwoods, and sends ripples along the surface of a stream. The fluttering wing feathers of a condor soaring overheard; the spiraling trajectory of a leaf as it falls; a spider web billowing like a sail; the slow drift of a seed through space—all make evident, to my eyes, the sensuous presence of the air. Yet these eyes cannot see the air itself.
Unlike the hidden character of what lies beyond the horizon, and unlike the unseen nature of that which resides under the ground, the air is invisible in principle. That which today lies beyond the horizon can at least partly be disclosed by journeying into that future, as that which waits under the ground can be somewhat unearthed by excavations into the past. But the air can never be opened for our eyes, never made manifest. Itself invisible, it is the medium through which we see all else in the present terrain.
And this unseen enigma is the very mystery that enables life to live. It unites our breathing bodies not only with the under-the-ground (with the rich microbial life of the soil, with fossil and mineral deposits deep in the bedrock), and not only with the beyond-the-horizon (with distant forests and oceans), but also with the interior life of all that we perceive in the open held of the living present—the grasses and the aspen leaves, the ravens, the buzzing insects and the drifting clouds. What the plants are quietly breathing out, we animals are breathing in; what we breathe out, the plants are breathing in. The air, we might say, is the soul of the visible landscape, the secret realm from whence all beings draw their nourishment. As the very mystery of the living present, it is that most intimate absence from whence the present presences, and thus a key to the forgotten presence of the earth.