ready-to-hand

A familiar functional tool is not noticed; you see through it to the task, the way you don't feel the pen while writing. Present-at-hand is the other mode: the object standing apart, conspicuous. The body schema describes the same structure from the other side — the cane integrated into a system of bodily possibilities, the coupling breaking the instant the stick is struck away. "Standing against" implies experienced distance, not hostility, and that distance is exactly what noise as design virtue wants to preserve and what the invisible influence loses.