~ from Chuang Tzu, chapter 19 (Hamill & Seaton)
The craftsman Ch'ui could draw a line straight as taut string and make a circle as perfect as a compass because he let his hand change with the change of things and didn't let his heart and mind get distracted. Therefore he kept his spirit's abode unified, yet unfettered.
If the shoe fits, you forget your feet. If the belt of office fits, you forget your waist. Knowing may forget right and wrong if heart and mind fit. If you don't want to be changed by what's internal or made to follow what's external, then you're fit to the task. Begin with what fits and never let it not fit, then you can forget about fitting.