How influential was the eight-character test in ancient marriage? What is the possibility of disagreement?

In ancient times, the matchmaker, at the behest of his parents, decided that the door was right, and pressed the exchanged "Geng Tie" (age, birthday) on the bottom of the net cup in front of the statue of Kitchen God to test God's will. If there are no "abnormal" situations such as broken bowls and lamps, disgusting meals, quarreling with family members, restless cats and dogs at home within three days, please ask the fortune teller to "arrange eight characters" to see if the year is appropriate and the zodiac is compatible. In the old society, some people were superstitious about the so-called six-year big rush and three-year small rush; Men get married at the age of two, and women don't get married at the age of nineteen; It is said that it is difficult to compare chickens with dogs (chickens are at odds with dogs), dragons with tigers (dragons and tigers fight each other), tigers with sheep (sheep fall into the tiger's mouth) and snakes with mice (snakes and mice swallow mice). It is considered that relatives can only be discussed if they are comprehensive.

Male and female zodiac signs first require opposition. The formula of China Zodiac is:

White horses are afraid of green cattle, sheep and mice-Danxiu;

Snakes and tigers are like knives and files, but pigs and monkeys have no end.

A golden rooster fears a jade dog.

The zodiac is like a gram, no matter how good the conditions are, you can't get married, and you don't have to get married again. If the zodiac signs coincide, then push whether the "fates" of both sides coincide. The so-called "fate" is based on heavenly stems and earthly branches, who was born on both sides, and forms a "fate" named after the "five elements", that is, Jin Mu has ten lives. According to the "five elements", we can see whether our lives match. When life is harmonious, "five elements" coexist, namely, golden water, aquatic wood, wood fire, fire soil and primary gold; Otherwise, the five elements are compatible with each other, such as Jin Kemu, Mutuke, Tukeshui, Shuihuoke and Huojinke. The "five elements" are naturally good marriages, but they can't all be so smooth. It depends on the mutual correspondence of the "five elements". As long as it's not like Jin Kemu, you can get married in exchange for fire and soil. This is the mutual insult in the "five elements". That is, fire insults water, water insults soil, soil insults wood, wood insults gold, and gold insults fire. Bullying is not as good as life, but it is better than grams. After calculating the zodiac and fate, there is the last level, which is the collision of birthdays. Therefore, marriage is very complicated, and it is generally necessary to ask a fortune teller or a yin-yang teacher to calculate. However, there is also a set of formulas. Without this set, they will sometimes be blind.