What is the reason why Lu Yu is called Cha Sheng?

Basically, after his death, Lu was called "Cha Sheng" or what we now call a tea expert. Before his death, although he was famous for his love of tea, refined tea and The Classic of Tea, and was nicknamed "tea fairy", among the people of his time, he did not appear as a tea man, but was respected as a scholar. This is because at that time, after the publication of tea classics, tea has become an independent knowledge, but it is just in its infancy, and its influence and status can not be compared with ancient documents. Secondly, the book "Tea Classic" was written after Lu Yu made his mark in the literary world, that is, Lu Yu's attainments in tea science were only revealed after he became a famous scholar, which is the second achievement. The Book of Tea written by Lu Yu has three volumes, ten chapters and more than 7,000 words, namely: Volume I, the source of one, the instrument of two, and the creation of three; Volumes 2 and 4; Volume Three, Five Boils, Six Drinks, Seven Things, Eight Outcomes, Nine Outlines and Ten Figures. It is a systematic summary of tea scientific knowledge and practical experience before and after the Tang Dynasty. It is the crystallization of Lu Yu's hard work, perseverance, first-hand information on tea production and extensive collection of books and tea collectors' experience. When The Book of Tea came out, it swept the world and was studied and treasured by people at that time. In the Book of Tea, Lu Yu described the distribution of tea areas, the growth, planting, picking, manufacturing and tasting of tea, and many famous teas were first discovered by him. For example, the ancient bamboo purple bamboo shoot tea of Zhejiang Great Wall (now Changxing County) was rated as top grade by Lu Yu and later listed as tribute tea; Yangxian tea in Yixing County (Yixing, Jiangsu Province) was directly recommended for tribute by Lu Yu. (Rebuilding Yixing Teahouse) It says: "Ancient Li Qiyun is the country, and there are people offering beautiful tea in Shanhaiguan. Some tourists taste it. Savage Lu Yu thinks it is sweet and spicy, ranking first in other places, and can recommend it to the world. From this, Yun Qi began to enter 12,000, which is also the origin. " Of course, it is his great contribution to China and world culture in tea science or tea industry. This point, whether at home or abroad, has always been the main aspect for later generations to study and introduce Lu Yu. Because everyone is familiar with Lu Yu's contribution in these aspects, this paper mainly discusses his academic achievements in other aspects besides tea science. Basically, after his death, Lu was called "Cha Sheng" or what we now call a tea expert. Before his death, although he was famous for his love of tea, refined tea and The Classic of Tea, and was nicknamed "tea fairy", among the people of his time, he did not appear as a tea man, but was respected as a scholar. This is because at that time, after the publication of tea classics, tea has become an independent knowledge, but it is just in its infancy, and its influence and status can not be compared with ancient documents. Secondly, the book "Tea Classic" was written after Lu Yu made his mark in the literary world, that is, Lu Yu's attainments in tea science were only revealed after he became a famous scholar, which is the second achievement. There are different opinions about the time when the Book of Tea Classic was completed. The author said that this was written by Wan around 758 AD. In the fifth year of Tianbao, when Richie's property was demoted to Jingling, Lu Yu was still in the music scene. After being discovered by Richie's property, he abandoned his interest in "Zou Fuzi Mountain Villa in Huomen Mountain" to study. But in eleven years, when Cui was appointed as Sima Jingling, Lu Yu became famous and became a city in Wenguan. According to records, after Cui arrived in Jingling, he traveled with Lu Yu for three years and talked about the ages, and published their poems in a collection. According to Cui, the year before Du Fu was demoted to Jingling, he presented the "Three Rites Fu". Tang Xuanzong was surprised by his talent, wrote a letter and tried to appoint Cui and Yu Xiulie as civil servants. Cui is good at poetry, especially ancient poems. Cui Shi's poems are "elegant and profound, suitable for irony, and Yuefu is short, not as good as the ancients." I have traveled with Cui for three years, and my fame is not only more prominent because of Cui, but also I have learned a lot from Cui. Lu Yu was famous as a scholar not only before he wrote the Tea Classic, but also after it became famous all over the country, even in his later years. As Quan Deyu wrote, when he moved from Xinzhou (now Shangrao, Jiangxi) to Hongzhou (now Nanchang), "wherever he went, he would ride the suburbs for thousands of times, and the five pulps would be spicy first"; Later, Nanchang went to Hunan. "I am not afraid of collecting roads, but I am bound to be polite." New knowledge is given by folding willows, and old couples are given by baskets. Everywhere I went, I was greeted by friends from the masses every time I left. As Quan Deyu said, Lu Yu received such courtesy in the society, not because of his contribution to tea science, but because of his position in literature, "both ci and art". So from the above situation, Lu Yu seems to be two completely different images before and after death. If, after his death, his achievements in literature were covered up by the Tea Classic and he became an idol in the tea industry, then, before his death, on the contrary, his achievements in tea science were covered up by literature and he was famous for his "outstanding ci skills". Lu Yu made friends with eminent monks and celebrities before his death and was active and influential in the literary world. But perhaps he was influenced by the thoughts of some celebrities in the society at that time, and his attitude towards literature and tea was the same, like but not biased. Therefore, reflected in his knowledge, he is not limited to one industry, but has a wide range of knowledge and versatility. In the past, according to Lu Yu's life activities and writings, the author proposed that Lu Yu was not only an expert in tea science, but also a famous poet, phonologist and primary school expert, calligrapher, actor, playwright, historian, biographer, tourist and geographer. If we generally call Lu Yu a historian, he is also an archaeologist or a connoisseur of cultural relics, in addition to some historical works such as Genealogy of Four Surnames in Jiangbiao, Figures in the North and South, Chronicle of Officials in Xing Wu and Secretariat of Xing Wu. According to Jiao Ran's preface to "Praise of Lanting Stone Bridge", in the spring of the eighth year of Dali (773), Lu Youping wrote a letter to worship Huiji Mountain and invited Lu Yu and others to (now Shaoxing, Zhejiang) and found an ancient lying stone, which was identified by Lu Yu as "the abandoned bridge column of Lanting in Jin Yong". Why are you looking for Lu Yu for identification? Why does Lu Yu have so much knowledge? Jiao Ran made it very clear: "The living (Lu Yu) is ancient, and so is my comrade." (1) If we call Lu Yu a geographer, he can also be said to be an expert in studying landscapes and writing local chronicles. For example, when Dugu and Changzhou were stabbed, Wuxi county magistrate ordered the renovation of Huishan scenic spot, "there are guests who know mountains and rivers", and ② Lu Yu was specially invited as a "consultant". It shows that Lu Yu in people's minds at that time studied geography, especially landscapes. During his stay in western Zhejiang, Lu Yu compiled various local records and mountain records for Huzhou, Wuxi, Suzhou and Hangzhou, which showed that he was also interested in and studied the knowledge of other local records. The Three Volumes of Tea Classics (collected by Bao Shigong in Zhejiang) were written by Tang Lu Yu. The word hung-chien,No. Sick Feather,No. Season Defect,No. Sangzhuweng, from Fuling. In the early Yuan Dynasty, it was hidden in Tiaoxi. He worshipped prince literature and moved to Taichang Temple for Taizu, but he did not take office. Zhenyuan died young. His deeds include "The Book of the Tang Dynasty, Biography of Seclusion". Said that Yu loves tea and wrote three classics. There are three volumes of novelists included in Literary Annals, which are the same as the current edition. The Collection of Houshan includes the Preface to Tea Classics: Lu Yu's Tea Classics, Letters from Home, Bi, Wang's Three Books, Zhang's Four Books and Ten Books at home and abroad, which are different in complexity and simplicity. Wang and Bi Shufan mean old books. A book is concise, combined with books at home, there are many mistakes. Letters from home are recent and can be verified. The following seven things are written in three books, recorded as two books, and kept at home. This three-volume book was written by Wang and Bi. Restrain the inaccuracy in the dissemination and writing of Houshan Collection, and mistake three articles for two. His books are divided into ten categories, namely, the source of the first category, tools of the second category, creation of the third category, tools of the fourth category, cooking of the fifth category, drinking of the sixth category, things of the seventh category, things of the eighth category, strategies of the ninth category and pictures of the tenth category. People who own it are all used to make it; The utensils are used for frying and drinking, so they are different. Sculptors refer to nine categories in the system, using silk and plain books, and no other pictures. Its category is ten, and its text is nine. A tea taster is not good at feathers, and his writing is simple and elegant. Seven Things quoted many ancient books. For example, Sima Xiangru wrote a 38-word article, which was not found in his book and was also used as a reference for textual research. -Published summaries of general contents of four libraries.