Carps living in the Yellow River have heard that Longmen is beautiful and all want to go sightseeing. They start from the Yellow River in Jin Meng, Henan, and pass through the Luohe River.
Along the Yi River, they came to the splash mouth of Longmen, but there was no waterway on Longmen Mountain, so they had to gather at the foot of Longmen North Mountain. "I have an idea. How about we skip this Longmen Mountain? " A beautiful and vigorous red carp said to everyone. "How can you jump so high?" "If you don't jump well, you will fall to your death!" The partners are confused and can't make up their minds. Red carp volunteered and said, "I'll try it first." I saw it exhausted all its strength from half a mile away, like an arrow that left the string, jumping into the clouds for a long time, driving the clouds and rain in the air forward. A mass of skyfire came from behind and burned its tail. It endured the pain, continued to jump forward, and finally crossed Longmen Mountain and fell into the lake in the south of Shannan. Carps in the north of the mountain saw that the tail of red carp was burned by skyfire, and they were scared to shrink together, afraid to take any more risks. Just then, I suddenly saw a dragon descending from the sky and said, "Don't be afraid.
I am your partner, red carp, because I jumped over the dragon gate and became a dragon, so you should jump bravely! "Hearing these words, the carp was encouraged and began to jump off the Longmen Mountain one by one. But except for a few who jumped into dragons, most of them couldn't get through. Anyone who can't jump over and fall from the air will have a black scar on his forehead. To this day, this black scar still grows on the forehead of the Yellow River carp.
Later, Li Bai, a great poet in the Tang Dynasty, wrote a poem specifically for this matter: "The Yellow River three-foot carp, originally living in Jin Meng, failed to make it, and all the fish returned."