Subsequently, two or more sworn parties became allies. Of course, this kind of thing is bloody and unsanitary after all, so it's just a symbolic drink.
Extended data
There is a cloud in the Book of Changes: "When two people are one, their profits will be cut off; Words of one heart stink like moss. " This sentence means that as long as two people have the same goals and ambitions, their joint efforts are enough to cut metal; People with one heart and one mind express the same views, and their views are like orchids full of fragrance, which will be more easily accepted by others. Moreover, during the period of worshipping the ancients, we must also abide by some rules.
The number of worshippers can be more or less, but it must be an odd number. The formation of this rule is obviously influenced by the Romance of the Three Kingdoms. However, in ancient times, there were also examples of two or four people becoming sworn. There is no limit to the number of men and women who take the oath. After becoming sworn, you should call the man a brother and the woman a sister. Generally speaking, the oath is usually taken in adolescence, and the purpose of the oath is more complicated.