the glass-walled basement dream: AA's Sergeant at Arms is Out There — "It manipulated the big stick in…"
It manipulated the big stick in the coolly purposeful way of the sort of angler who you know isn’t going to throw back anything he catches.
Context
The book's most compact image of the Disease's patience, and the answer to Gately's long puzzlement about where AA's discipline comes from. The meetings need no internal enforcer because the enforcement waits Out There: a suave, smily-faced figure trolling a shepherd's crook, hooking anyone who stands up from the kneeling assembly and stops. The genius of the image is the mask — the Disease wears the corporate "have a nice day" smile precisely because it means to catch and keep, "an angler who you know isn’t going to throw back anything he catches." Sobriety's real sergeant-at-arms is death-and-relapse itself, casually checking its cuticles in every pharmacy and after-hours club, promising just one more nice day.