Look at it this way: There are many here among us for whom the life force is best represented by the livid twitching of one tortured nerve, or even a full-scale anxiety attack. I do not subscribe to this point of view 100 percent, but I understand it, have lived it. Thus the shriek, the caterwaul, the chainsaw gnarlgnashing, the yowl and the whizz that decapitates may be reheard by the adventurous or emotionally damaged as mellifluous bursts of unarguable affirmation.