The explanation is: I saw white clouds when I passed Yandang Mountain, and it was drizzling when I sat quietly near Longqiao to watch the scenery.
from: Shen Kuo's Mengxi Bitan Yandang Mountain
Original text: Yandang Mountain in Wenzhou is a wonderful place in the world, but it has never been said since ancient times. Among the auspicious symbols, Yuqing Palace was built and materials were harvested by logging, which was only seen by some people. At this time, it is not yet famous. According to the book of the western regions: Arahant Norodom lives in the southeast of Sinian Sea, and the dragon is located in the Furong Peak of Yandang Mountain. Guan Xiu, the Tang Priest, wrote a poem titled "Nuoluo Zan", which read "The wild geese are wandering in the clouds and the dragons are feasting in the rain".
Interpretation: Yandang Mountain is a strange and beautiful mountain in the world, but it has never been mentioned in the geographical atlas since ancient times. According to books in the Western Regions, there was a Lohan named Nuoju Luo who once lived in Longqiao of Furong Peak in Yandang Mountain on the southeast coast of China. Guan Xiu, a monk in the Tang Dynasty, wrote "Nuoju Luozan", and there is also a poem "The wild geese are wandering in the clouds and the dragons are feasting in the rain"
Extended information:
Shen Kuo is an extraordinary scientist and scholar in the history of our country. He has written a lot in his life, and his original ideas are unique, extensive and profound. Mengxi Bi Tan is a brilliant and immortal masterpiece he left to the world.
Shen Kuo's observation of things does not stop at perceptual knowledge, but is improved to rational knowledge stage through analysis. Scientific judgment is the pioneer of theoretical research on geology and topography in China. This conclusion is relatively scientific, and it is still brilliant today when modern science is highly developed.
Shen Kuo engaged in political activities all his life and did a lot of useful practical work for people. On the one hand, scientific research, astronomy, mathematics, calendar, geography, biology, literature, history, music. Archaeology and other disciplines have made outstanding contributions. He is a rare generalist in the history of our country and the history of the world.