Lot 27 is tied in most editions to Liu Ji, better known as Liu Bowen, the strategist who helped Zhu Yuanzhang found the Ming dynasty. In 1363 Zhu decided to march to Anfeng to break a siege there. Liu urged him not to leave his base exposed. Zhu went anyway, and while he was away his great rival Chen Youliang laid siege to Hongdu, the city now called Nanchang. The official Ming history records Zhu admitting afterward that he should never have made the Anfeng trip. The story sits behind a poem about weighing what came before and after, and about a house with walls like a mountain. Good counsel is the wall. The lot is middle because the safety depends on listening to it.