Dà Zhuàng (大壯) — Great Power

Thunder above Heaven — four yang lines, substantial force, real momentum. "Perseverance furthers." The ram at the fence: enough power to break through, also enough to injure itself on the fence. "The goat butts against the hedge and gets its horns entangled." Strength works best when it doesn't need to demonstrate itself — when it can choose the right moment rather than forcing every moment into an occasion for force.