Jiang Ziya is the figure behind the crane leaving its cage, in the version told by the novel Investiture of the Gods. Sent down from his Daoist master's mountain, he failed at every trade he tried, and at seventy-two took a minor post at the court of the tyrant King Zhou of Shang. When the king ordered him to build the lavish Deer Terrace, Jiang protested, then escaped by plunging into the river and walked away from office for good. He went to fish on the Wei River and wait for the right ruler. Throwing off a post that held him was his release, and the trouble that came first fits the image line's warning of hardship before good, which keeps this freeing stick at middle.