Cheng Xin Tang Tie is one of the most typical representative works of regular script in Cai Xiang's ink in the Northern Song Dynasty. Scholar-officials in Song Dynasty paid attention to life taste, especially study furniture. Cai Xiang wrote this letter in order to entrust others to make or look for the famous paper-Honesty Hall Paper.
The full text is written in block letters, graceful and meticulous. It seems that all the strokes are made by Yan, the structure is straight and slightly flat, the line spacing is appropriate, and each stroke and painting is very graceful and elegant. Cai Xiang, 52 years old, is a masterpiece of advocating the final book style in his later years.
Chengxin Tang paper originated in the Southern Tang Dynasty in the Five Dynasties. It is said that it is "skin like an egg membrane, hard and clean as jade, thin and slippery", which is very precious and hard to find in the Northern Song Dynasty. The paper trace of this book is delicate and bright, which is probably a sample of Cai Xiang's paper used as a bearing hall.
Cai Xiang, the word Mo Jun. Yi people in Juntangan Township, Xinghua (An) are from Chihu Jiaoxi (now Xianyou County, Fujian Province). Famous officials in the Northern Song Dynasty, calligraphers, writers and tea scientists. In the eighth year of Tiansheng (1030), Cai Xiang became the first scholar, and successively served as a collator, remonstrator, history museum, intellectual patent, bachelor of Longtuge, bachelor of Privy Council, bachelor of Hanlin, third secretary and bachelor of Duanmingtang in Fujian Road, and learned about Quanzhou, Fuzhou, Kaifeng and Hangzhou.