All blade work is to cut through something. [\]
Lynn, may we not also use our swords defensively? Granted, it still cuts through air, it might cut through the timing of an attack, it might cut through the mind -- but does not a sword, when used well, also have the capacity to unify?
And as long as we're talking about swords and words, I am forever fascinated by the dual nature of the English word "cleave."