Express gratitude and respect: the groom's crying at the wedding is a thank-you and respect for his loved ones. The groom expressed his gratitude to his family for their long-term care and support through tears.

Traditional custom: In some areas, it is a traditional custom for the groom to cry at the wedding, which has been circulating for many years. This is a commemoration and respect for the past.

Expressing feelings: The groom crying at the wedding is a way to express his feelings. Wedding is a very touching occasion, and the groom may be excited about his new life.

Symbolism: It is also symbolic for the groom to cry at the wedding. Crying means that the groom wants to say goodbye to his family and start a new family life. This is a farewell to the past and an expectation for the future.

Social expectation: In some areas, it is considered a normal social expectation for the groom to cry at the wedding. This expectation may come from traditional customs and family values.

In short, the groom crying at the wedding is a way to express his feelings, gratitude and respect. This is also a commemoration of the past and an expectation for the future. Although this custom is different in different regions, the meaning and value behind it are similar.