"Naihe" is the name of the river in hell as Buddhism says. The fourth volume of Xuanshizhi records: "It travels for more than ten miles, reaching a water, not a few feet wide, and flows to the southwest. Looking at Xi, Xi said, "The so-called Nai River in this custom originated from the underworld". Look at it, its water is blood, but it is not close. " Because there is a bridge over the river, it is named "Naihe Bridge". The bridge is narrow and flat, and the sun and night gods guard it day and night. The river of blood under the bridge is full of insects and snakes, the waves are rolling and the wind is blowing hard. The ghost of the wicked fell into the river, as described in The Journey to the West's tenth episode: "Copper snakes and iron dogs compete for food, and there is no way to fall into the river forever." Can't help but remind people of the horror of the Nai River in the underworld.

Folk rumors: after death, all souls have to cross the Naihe Bridge. The good ones cross the bridge smoothly under the protection of the Buddha, while the evil ones plunge into the blood pool and suffer. The book Investigation on Religious Customs in Fengdu describes this in detail: "... the bridge is divided into three layers (or three layers). Ghosts of good people can safely cross the upper bridge, ghosts of evil people cross the middle bridge, and ghosts of evil people cross the lower bridge. Most of them are stopped by ghosts in the dirty waves under the bridge and bitten by copper snakes and iron dogs. At the annual incense party, pilgrims rushed to throw paper money or copper coins into the pool and sprinkle fried rice into the pool, thinking that they could give it to hungry ghosts. Many elderly pilgrims like to walk on the bridge, thinking that they can avoid the pain of crossing the Naihe Bridge after death. " It can be seen that before the founding of the People's Republic of China, some kind men and women went to the bridge to burn incense and paper, and gave money and material piety, hoping to protect Naihe Bridge after the death of Buddha. The monks and nuns in the temple have good ways to make money. In order to make more money, they deliberately painted tung oil and egg white on the bridge deck of Qingshiqiao, making it more difficult for pilgrims to cross the bridge, especially for the elderly and women with little feet. They often fall on the bridge, and everyone is afraid, so they have to take money to eliminate the disaster. Thereby deepening the myth of Naiheqiao.

There are no ghosts and gods in the world. With the development of science and technology today, people will not be confused by ghosts and gods. Naihe Bridge is a witness of history and a symbol of people's good wishes, aiming at educating people to do more good deeds and accumulate good deeds for the benefit of mankind. This is exactly what it says: "Good deeds are blessed by the Buddha, while evil deeds are sad by the river bridge. It is not surprising to cross the Naihe Bridge without doing anything wrong. "