The preface consists of 324 Chinese characters in 28 lines. The character zhi (之) appears 17 times, but no two look the same. It is also a celebrated work of literature, flowing rhythmically and giving rise to several Chinese idioms. It is a piece of improvisation, as can be seen from the revisions in the text.

Emperor Taizong of Tang liked Wang's calligraphy so much that he ordered a search for the original copy of Lanting Xu. According to legend, the original copy was passed down to successive generations in the Wang family in secrecy until the monk Zhiyong, dying without an heir, left it to the care of a disciple monk, Biancai. Tang Taizong sent emissaries on three occasions to retrieve the text, but each time, Biancai responded that it had been lost. Unsatisfied, the emperor dispatched censor Xiao Yi who, disguised as a wandering scholar, gradually gained of confidence of Biancai and persuaded him to bring out the "Orchid Pavilion Preface." Thereupon, Xiao Yi seized the work, revealed his identity, and rode back to the capital. The overjoyed emperor had it traced, copied, and engraved into stone for posterity. Taizong treasured the work so much that he had the original interred in his tomb after his death. The story of Tang Taizong seizing the Lantingji xu has since the subject of numerous plays and novels.

Numerous tracing copies and other forms of duplications such as rubbings exist today.

References

• Li, Siyong, "Wang Xizhi" Encyclopedia of China (Chinese Literature Edition), 1st ed.