There are several explanations for the word recognition:
1. In the old society, when getting married, the family members of both men and women visited the house for the first time (so-called door-to-door recognition);
2. recognize others as relatives (the meaning of recognizing kinship);
3. Recognize long-lost relatives (long-lost relationship, now I recognize it again);
It can be called "recognition".
Because our culture has traditionally attached great importance to consanguinity and the resulting kinship, it is actually a ceremony to establish intimate relations, not a feudal superstition.