There is no doubt that the positive record of Kun Peng in ancient books began with "Zhuangzi Xiaoyao Tour": "There are fish in the north, named Kun. Kunda, thousands of miles away. Become a bird. Its name is Peng. Peng's back is thousands of miles away; Fly away angrily, its wings hang in the sky like clouds. If it is a bird, shipping will migrate to Nanming. South ghost, Tianchi also.
Commentary: "There is a kind of fish in the North Sea. Its name is Kun and Kun is huge. I don't know how long. " It becomes a bird, and its name is Peng. Peng's back, I don't know how long; It spreads its wings and gathers all its strength. When it rises and flies, its wings cover the sky like clouds. When the ocean moves and the wind blows, the bird flies to the South Pole. The South China Sea is a deep pool stretching into the sky. "
Extended data
The world where Kunpeng is active is a vast and boundless world. Here, Dapeng is a symbol of a free soul that is not blinded and bound by foreign objects. In order to set off Kun Peng's ideal of swimming, Zhuangzi took the biggest image between heaven and earth-the Great sea and the sky as his activity space. Because only the Great sea and the sky can set off the greatness of Kun and the greatness of turning Kun into Peng (a symbol of human spirit or soul), and can show the majestic momentum of Dapeng's "water beating three thousand miles, soaring to nine Wan Li".
Baidu Encyclopedia-Kunpeng