What does it mean for couples to knock three times in a traditional wedding in China?

This is an ancient custom in China, and the three worships at the wedding are also called worship of heaven and earth. The first worship is heaven and earth. It is heaven and earth that breeds everything, so heaven and earth are the largest. The second one worships parents. Because your parents raised you. The third worship is husband and wife worship. It means mutual respect. Therefore, when the ancient people got married (also called meeting the bride), a host shouted: One worships heaven and earth, the other worships Gaotang, and the husband and wife worship each other and send them to the bridal chamber. It's in many TV plays now.