Because the legendary phoenix "does not eat unless bamboo", "does not drink unless spring" and "does not live unless phoenix tree", it only stands on the phoenix tree. Without buttonwood, golden phoenix can't land, so there is a saying that "golden phoenix can't be recruited without buttonwood". "Zhuangzi Qiushui" contains: Hui Shi is in Liang Rencheng, and Zhuangzi wants to meet this good friend. Someone quickly reported to Keiko, "Zhuangzi has come to replace you." Keiko is scared and wants to stop Zhuangzi. He sent people to search all over the country for three days and nights. Unexpectedly, Zhuangzi calmly visited him and said, "There is a bird in the south. Its name is Phoenix. Have you ever heard of it? Phoenix flies high. Flying from the South China Sea to the North China Sea is not that the phoenix tree is not alive, and it is not practical and does not eat; Don't drink unless it's sweet spring.