Out of options, I joined the other no-hopers at Mayo’s pain rehabilitation center. There, chronic pain, unlike the acute variety, was treated as a malfunction in perception, whether or not an ongoing physical cause had been identified. The brain becomes addicted to dramatizing pain, they said; and the more you feed it, the stronger the addiction. So don’t dwell on the pain, and don’t try to fix it — no props, no pills. Eventually the mind should let go.