Why is Wang Xizhi's calligraphy priceless?

Preface to Lanting is also called Preface to Lanting, Preface to Lanting, Preface to He Lin, Preface to Zan and Zan Tie. On March 3rd, the 9th year of Yonghe in the Eastern Jin Dynasty (AD 353), 4/kloc-0 people, including Wang Xizhi, Xie An and Sun Chuo, wrote poems in Lanting (now Shaoxing, Zhejiang). At the meeting, Wang Xizhi wrote a preface for their poems. The preface narrates the beauty of the landscape around Lanting and the joy of gathering, and expresses the author's feelings of impermanence of life and death. The book of law posts handed down from generation to generation, with 28 lines and 324 words, is perfect in composition, structure and brushwork, and is his masterpiece at the age of 33. Later generations commented that "the font of the right army has changed. Its heroic spirit is natural, so it is considered to be a model from ancient times to the present. " Therefore, calligraphers of all ages regarded Lanting as "the first running script". In the Tang Dynasty, he was collected by Emperor Taizong and promoted to be the representative of Wang Shu. He had ordered Zhao Mo and others to make several copies and give them to relatives and trusted ministers. Unfortunately, it was buried in Zhaoling as a sacrificial object by Emperor Taizong, and the original work will never be seen in the world. "Dragon Book" is the most famous ink in the Tang Dynasty. It was named "Lanting Dragon Book" because of the golden seal of Feng Chengsu during the reign of Emperor Taizong. This book is well written, and its brushwork, ink style, style and charm are all reflected. It is recognized as the best copy. Stone carving is the first to promote the "fixed object book" According to Guo Moruo's textual research, the second half of the Preface to Lanting handed down from ancient times has nothing in common with Wang Xizhi's thoughts, and the calligraphy style is also different from the epitaph of the Eastern Jin Dynasty unearthed in recent years, which is suspected to be wrongly entrusted by Sui and Tang Dynasties. But some people disagree. Preface to Lanting shows the highest realm of Wang Xizhi's calligraphy art, and the author's tolerance, phoenix spirit, mind and feelings are fully displayed in this work. The ancients said that Wang Xizhi's cursive script is like "the breeze comes out of the sleeve and the next month comes into my arms", which is a wonderful metaphor. Because there was a favorite NB emperor in the history of China, the following people kowtowed to the emperor, so there was a rumor, which got worse and worse. But it's amazing. How do the rich show their wealth? If I have something that others don't, then I am richer than you!