This morning, while running through frost, my toe clipped the curb and I flew. I remembered my last fall—the unnatural way my wrist flung toward my heart. The way dead cells collected underneath the plaster cast. I remembered all the trips and falls, scabs and scrapes. Today I soared: arms outstretched like warnings, head cocked like a trigger. When I hit the concrete there was no thud, no smack, no break. I sat in my bruises, the sidewalk cold with morning. My muscles had been trained; instincts rewritten. I considered the rooftops, the sky, then took my running start.