1 It has three problems worthy of attention. First of all, tribute is one of the important contents of the vassal's report to the emperor. Tribute items are not made at will, but have specific regulations. It must be a "native product" (now called a native product), and there must be a list of gifts when giving; When the son of heaven accepted it, he also received points according to the prescribed list. Secondly, the tributes offered by the governors must be put out one by one and placed in the royal court. The so-called "distant affairs" is a sign that the emperor has four seas, all countries are smooth, stable and unified. Therefore, "the court is full, giving jade and silk, and the beauty of heaven and earth is embarrassing." Thirdly, the primary task of vassal tribute is to "help sacrifice" Sacrifice to the gods should also be arranged one by one and arranged in front of the gods. There is no choice but to use the "blessing method" to display sacrifices on a large scale and show them everywhere. When offering sacrifices, gods and sacrifices are called "more beautiful names", which shows that the starting line of witchcraft imitation and artistic imitation is almost completely unified at first. From this, it can be seen that the contribution of the tribute is not only a noun-the material object contributed by various vassals, but also a verb-which contains the double meanings of "receiving sacrifices" and "offering sacrifices". At the same time, "Fu" is a means and form with strong dynamic characteristics, and it is "spreading" and "directly spreading". Once the tribute is transformed into the archival materials of written records, the temporary physical objects are transformed into permanent spiritual products. This change from material and its arrangement form to language arrangement form is a key leap. From then on, "Fu" can be a kind of language expression, expressing people and things, feelings and foreign things in a "direct way". Later, we saw that once this form was stabilized, it would generally be applied to other aspects, such as the speech of offering sacrifices to the gods of heaven and earth, the imperial edict of the emperor, the reports of vassal officials and so on. When it comes to a comprehensive and complete narrative, this means or form can be adopted, and sometimes it is simply called "Fu". Of course, this change from "giving things" to "giving words", that is, from practicality to aesthetics and from content to form, is a very long historical process, and its source should be the large-scale display of paving sacrifices in primitive religious sacrificial activities when the big tribal alliance appeared. Ancient rites are religious, and there is no distinction between politics and religion. Therefore, Mr. Zhu Ziqing once speculated that "the reason why poetry is called' Fu' is because there are words' giving life' and' giving politics' in the Book of Songs, or it is related to this meaning. This is a task that needs a monograph to complete. It should also be pointed out that whether the emperor experienced his spirit of submission to the world or condensed people's main wishes during the sacrifice, they were all pinned on the given objects. Then, the later figurative technique, that is, the so-called method of "turning the virtual into the real" by materialization, should be after the given object is created. Therefore, Fu not only precedes Bixing, but also is the ultimate foundation of Bixing. Obviously, Bixing originated from Fu.