How much is Wang Xizhi's calligraphy and painting?

In the history of China's calligraphy, there is a kind of "the best running script in the world" recognized by calligraphers in past dynasties, that is, Wang Xizhi's Preface to the Lanting Pavilion, and Wang Xizhi was praised as a "book saint" by later generations. Calligraphy reached its peak in his later years, and Preface to Lanting was his masterpiece in his later years. The famous Preface to Lanting Collection describes the collection of literati at that time. Because the author was in high spirits and was very proud of his writing. It is said that I couldn't write anymore. Among them, there are more than twenty "zhi" characters, which are written in different ways. Mi Fei in Song Dynasty called it "the best running script in the world". At present, there are no original works in the world, only Yu Shinan and Moline in Tang Dynasty, among which Moline in Yu Shinan is the most respected, and Wang Xizhi's original works have long been recognized by the world. A few years ago, Ping An Post sold 308 million copies. The fast snow-clearing post of the Forbidden City in Taiwan, a national treasure cultural relic, is also an imitation of the Tang Dynasty. If Wang Xizhi's original work is true, it will be identified as genuine. If they are put up for auction, they can only be priceless!