You is the yin-metal branch (hidden Xin), the 8th month, 5–7 pm — metal at its purest, the hour of jewels.
You is Xin at its stronghold — refined metal with an edge. Friction: the Mao–You clash and You–You self-punishment; grace: Chen–You harmony and the Si–You–Chou frame. You stands on craftsmanship — mastery of one thing is its moat.