What do you mean by marriage, marriage and happiness?

It is double luck for husband and wife to tie the knot and form in-laws. According to the query of China's Ci. Marriage means intermarriage to form in-laws relationship, and Jiaqing means auspicious and festive events. Marriage means that a man and a woman get married through legal procedures, and it also means that two copies are put together in duplicate. The basic meaning of "happiness" is that everything goes well and everything goes well.