There are many reasons for the spread of The Book of Songs.

This ancient literary work, which has gone through more than two thousand years, is regarded as the cornerstone of China's literary history. However, this collection of literature has been passed down to this day, and there are still very experiences and stories. Two of them have to be mentioned, that is, Mao Heng and Uncle Scapharca.

The Book of Songs was collected and edited by Confucius and passed to Xia Zi, then to Zeng Shen, then to Li Ke, then to Meng Zhongzi, then to Mu Zi and Xun Qing, and then to Mao Heng. Mao Heng coincided with Qin Shihuang's burning books and burying Confucianism, and had to go north to Hejian (county, ancient Zhao) urgently. It is said that Shijing Village in hejian city today is where Mao Gong lives in seclusion. In the meantime, Mao Heng's nephew Scapharca fled to Changle, Shandong Province, and the two uncles and nephews did not contact each other anonymously, thus avoiding this disaster. It was not until Emperor Hui of the Han Dynasty issued a decree revoking the "Book Carrying Order" that Shi Mao was able to rearrange the biography of The Book of Songs and personally teach it to Scapharca subcrenata. People call Mao Heng a big hairy man and Scapharca subcrenata a little hairy man. At that time, Liu De, the Hejian king of the Western Han Dynasty, begged the world for "good" books. Suddenly, he heard that there was such a great sage in his jurisdiction who could recite scriptures and interpret them. He was overjoyed and "hired repeatedly", so he invited Scapharca subcrenata to come out of the mountain, made him a doctor, and built the Rihua Palace in the east of Lecheng, the capital. At that time, there were four main people who explained the Book of Songs: Qi Yuangu, Lu, Yan and Hejian Maoheng. However, due to the authenticity of Mao's poems, the interpretation of the classics is often consistent with the pre-Qin classics, and its exegesis is plain, accurate, concise and easy to learn, so the unique Mao's poems have been handed down.

The date of his death is unknown, but he was not buried in his hometown after his death. Speaking of Scapharca subcrenata, he later became the magistrate of Beihai (now southeast of Changle, Shandong Province). He finally hired a teacher from Hejian and was buried near Guodu Lecheng. However, in order to worship and sacrifice, the hometown people in Hejian built a cenotaph of Scapharca subcrenata in the northwest of Shijing Village and Junzi Pavilion, which was called "Mao Jinglei".