During this mission to Qidan, Su Zhe also deeply realized the worship of his brother by the Qidan people. At that time, the poems of Jia Dao, Su Shi, Huang Tingjian and others had become the mainstream of studying Chinese poetry by Qidan people. Su Shi's poetry is more famous among the Khitans, and his name is widely praised on the grassland. It was in the year when he was sent to Qidan that Su Shi's poetry collection Meishan Collection was just published. On the way to Qidan, Su Zhe saw the Meishan Collection reprinted by the Qidan people. When Su Zhe moved into the posthouse, he looked up and saw Su Shi's poems engraved on the wall, which really surprised him. Many people there know that Songshi is Su Shi's younger brother, and they all ask him about Su Shi. Su Zhe was so surprised that he wrote four quatrains for his brother. In which he said, "Who will gather in Yandou? Feng Jian Ren Hu asked Dasu. Don't sell yourself short and be afraid of the legendary swordsman. " "Liu Ting aspires to the Central Plains, and his words are also pious. I am ashamed of Lu Jia, but I am pretending to help her return to the field. "
Su Shi and Su Zhe brothers really turned purple in Qidan.
On one occasion, when the two brothers went to Beijing, an envoy of Liao country who went to Beijing on business ignored diplomatic discipline, inquired about their residence privately, ran to the residence and recited their articles loudly, reading them over and over again, insisting that they come out to meet.
The Khitans knew that Su Shi was an alcoholic. At a reception for the Khitan emissary, Su Shi declined slightly and proposed a toast to the Khitan emissary. The messenger came up to him with a glass and recited his poem on the spot: "How many times have you drunk, the moonlight at Xixuan is new at night", which proved Su Zhe's capacity for drinking.
On the way to the mission, the Qidan people in Beijing heard that Su Zhe's family had a wonderful medicine "Poria powder" and begged him to introduce the efficacy of this medicine. Su Zheshuang quickly explained that when he was a child, his body was weak, he was constantly suffering from diseases, nausea, vomiting and diarrhea, or he had a cold, fever and cough. Although you have taken medicine at both ends for three days, it has little effect. When I was in my early thirties, my old illness didn't heal, and I added new diseases: I was flustered, short of breath and dizzy all day, and I sought medical treatment everywhere, and my health was still getting worse every year. After I came back, I taught myself Shennong Materia Medica Classic, and found that the medicinal properties of Poria cocos are very peaceful, just like Shennong Materia Medica Classic pointed out that "long-term service can soothe the nerves and prolong life", which is just right for my illness. So he bought some poria cocos and insisted on taking it every day. Sure enough, within a year, all the previous ills magically disappeared, and the body became stronger every day. He said that Poria cocos is a treasure for nourishing the kidney and strengthening the spleen, which can "relieve the urgency for a while and break the strange evil for a while". Taking Poria cocos powder "can consolidate the foundation and replenish qi, prolong life, and prolong life". If you take it for a long time, you can "calm your mind" and "look like a virgin, and your hair is green; God is calm and self-satisfied. Then take the meaning of heaven and earth, resist the discrimination of six qi, and swim endlessly. " When he came back, he wrote it into his article "Fufufu".