from the end of 'the writing life'
"Rahm did everything his plane could do: tailspins, four-point rolls, flat spins, figure 8's, snap rolls, and hammerheads. He did pirouettes on the plane's tail. The other pilots could do these stunts, too, skillfully, one at a time. But Rahm used the plane inexhaustibly, like a brush marking thin air.
His was pure energy and naked spirit. I have thought about it for years. Rahm's line unrolled in time. Like music, it split the bulging rim of the future along its seam. It pried out the present. We watchers waited for the split-second curve of beauty in the present to reveal itself. The human pilot, Dave Rahm, worked in the cockpit right at the plane's nose; his very body tore into the future for us and reeled it down upon us like a curling peel.
Like any fine artist, he controlled the tension of the audience's longing. You desired, unwittingly, a certain kind of roll or climb, or a return to a certain portion of the air, and he fulfilled your hope slantingly, like a poet, or evaded it until you thought you would burst, and then fulfilled it surprisingly, so you gasped and cried out.
The oddest, most exhilarating and exhausting thing was this: he never quit. The music had no periods, no rests or endings; the poetry's beautiful sentence never ended; the line had no finish; the sculptured forms piled overhead, one into another without surcease. Who could breathe, in a world where rhythm itself had no periods?
It had taken me several minutes to understand what an extraordinary thing I was seeing. Rahm kept all that embellished space in mind at once. For another twenty minutes I watched the beauty unroll and grow more fantastic and unlikely before my eyes. Now Rahm brought the plane down slidingly, and just in time, for I thought I would snap from the effort to compass and remember the line's long intelligence; I could not add another curve. He brought the plane down on a far runway. After a pause, I saw him step out, an ordinary man, and make his way back to the terminal."