The heavy mountain obstacles on both sides of the strait do not mean that the sun and the moon cannot be seen at midnight.

Meaning: There are almost no gaps between the mountains on both sides of the strait. Layers of peaks cover the sky and block the sun. If there were no noon and midnight, we would not see the sun and the moon. This sentence highlights the steep peaks and deep canyons. Yang Shoujing's calligraphy Yidu Collection.

The original version of Yiduji entered the Xiling boundary from Huangniutan in the east, and reached the canyon for hundreds of miles. The mountains and rivers are winding, and the mountains on both sides of the strait are heavily blocked. Except for day and night, there is no sun or moon. Cliff or thousands of feet, depicted in stone color, has many images, lush trees, a little winter and spring, apes singing until the Qing Dynasty, and the valley is ringing endlessly. The so-called Three Gorges is one of them. Sa: It is often said that there is water disease in the gorge. The secretary said it himself. As we all know, there is no such thing as the beauty of mountains and rivers. I'm glad to be here, but I don't believe what I heard is better than what I saw with my own eyes. Its overlapping peaks present strange shapes, which are difficult to describe. The trees are bleak, only towering, which is on the surface of Xia Qi. Look up, look down, learn from each other's strengths, linger in the house, never forget. I have never read my resume. Since I am glad of this spectacle and the mountains and rivers are full of spirits, I should also be surprised to know my friends through the ages.

The author introduces Yang Shoujing (1839-1965438+20051October 9), a native of Lucheng Town, Yidu City, Hubei Province, whose real name was Kaike, later renamed Shoujing, and became an old neighbor of Su in his later years. Outstanding historical geographer, epigraphy philologist, catalogue publisher, calligraphy artist, coin collector and bibliophile in the late Qing Dynasty and the early Republic of China.

Yang Shoujing studied hard all his life, read widely, memorized by rote, and was famous for being good at textual research. He is a great scholar who integrates geography, epigraphy, calligraphy, coins, books and inscriptions. He wrote as many as 83 kinds of works in his life and was praised as "the first beginner in the late Qing Dynasty". His masterpiece Notes on Water Mirror is a monument in the history of Li's research.