Zhuangzi said that there was a big bird named Peng, which was changed from a big fish named Kun. Legend has it that there is a big fish named Kun, whose length is unknown and its width is unknown. A day flies like a cloud and becomes a big bird that can fly for miles, so it is called Peng.
There is an ancient poem: When the clouds open in Heng Yue, the wind and rain stop, and Kunpeng waves across the sea. Three feet cold jiangdong mausoleum refers to some grand things commonly used by Kun Peng now. There is a saying: "Learn to be a Kunpeng, fly to Wan Li, not a bird's nest." This is an image with lofty aspirations and longing for a better future. Dapeng, hidden in the ghost North Sea, was originally a "Kun fish" and a "slacker". However, it refuses to be complacent and dares to deny itself. It resolutely left the bleak North Sea and flew to the "enlightened side" South China Sea. Zhuangzi, a Dapeng who tried to make progress in the dark, used the image of Dapeng to explain the Taoist "equality" and "equality".
As big as Dapeng, which flies high in Wan Li in September, as small as "Gun Yu Fang" and learning pigeons, they are all eager to move, and they have failed to achieve absolute freedom. Only those who "take advantage of the meaning of heaven and earth" can not achieve absolute freedom, and only those who "take advantage of the meaning of heaven and earth to resist the debate of six qi" can achieve the ideal realm of unrestrained freedom.