I bought it at LexCare Pharmacy, on the corner of Lexington Avenue and East One Hundredth Street. It was the most—all right, I’ll say it—spiritual I’d felt picking out a commodity. The package boasted of WhisperFlex™ design and a SteadiGrip™ base, and said, “Easily folds & unfolds in about a second.” A free wrist strap was included. I touched its cool steel shaft, its rubberized foot. Tried to imagine how it would feel as an extension of me.