I lie very still on the bed of the densitometer as its arm sweeps over my body. Unlike Vesalius or even Galen, the doctor won't see me as a figure stepping off a pedestal—it wants to see inside itself and so moves aside the curtain of its own scalpeled flesh, revealing organs so neatly penciled there. The radiologist reads shadows cast by the pillars in my cathedral of bones as well as the rate at which beams are absorbed by soft tissue, in comparison to bone. By whatever light, each is part of a cipher locked part by breakable part: scapula, gladiolus, floating rib, pelvic cavity; even the smallest phalanges of the toes.