"The best taste in the world is pure joy" is wrong. It should be "the most delicious taste in the world is pure joy", which comes from "Huanxisha·Dry rain and slanting wind make the dawn cold" by Su Shi, a writer of the Song Dynasty.
The content of the whole poem is: On December 24, the seventh year of Yuanfeng, Uncle Liu Qian traveled from Sizhou to Nanshan. The drizzle and slanting wind make the morning cold, and the light smoke and sparse willow trees make the beach beautiful. The journey into Huaiqingluo is gradually long. Snow foam and milk flowers float on the afternoon cup, and polygonum antler and artemisia bamboo shoots are served on the spring plate. The taste of the world is pure joy. Translation: The drizzle and slanting wind are slightly cold in the winter morning. The light smoke and sparse willows make the beach more charming after the first clear weather. After Luojian enters Huaihe River, the water situation is vast. Creamy white tea accompanied by fresh emerald spring vegetables, this picnic tastes really good. But the real taste in the world is pure joy.
According to the word order, this word was written on December 24, the seventh year of Yuanfeng, Emperor Shenzong of the Song Dynasty (1084). In March of that year, after Su Shi had been relegated to Huangzhou (now Huanggang, Hubei) for more than four years, he was ordered to move to Ruzhou (now Linru, Henan) to train as deputy envoy. Although this quantitative transfer is not a promotion, it marks a turning point in the political climate. According to the "History of the Song Dynasty·Biography of Su Shi", in the handwritten notes of Song Shenzong who moved to Shi Ruzhou, there is a saying that "it is difficult to find talented people, and I can't bear to give them up". In April of this year, Su Shi left Huangzhou for Ruzhou. The most difficult period in Huangzhou was finally over. He was in a relaxed mood and had many sightseeing trips along the way. After a pleasant trip to Mount Lu, he visited his younger brother Su Che in Junzhou, Jiangxi Province. When he arrived in Jinling, Wang Anshi, who was interested in becoming an official, had been singing for many days, and there was an agreement to buy a piece of land in Jianggan and live in seclusion together. At the end of this year, Su Shi came to Sizhou (now Xuyi, Jiangsu Province) and wrote to the court, asking him to quit his post in Ruzhou and return to Yixing to cultivate. This word was created in this context. At that time, Su Shi and Uncle Liu Qian of Sizhou traveled to Nanshan, so he wrote this poem to record his travels.