In Kaiguan 7. There was a daoshi named Lu Weng, who had learned the art of Taoism. On his way to Handan, he was resting in an inn. As he sat there, taking off his hat and loosening his sash and leaning against his luggage bag, he saw a young man walking down the street. His name was Lu Sheng, and he was riding a black horse, dressed in coarse, short clothes, and was going to the fields. He also stopped at the inn and sat on the same seat as Lu Weng and was talking happily.