How do you understand the dragon posted when you get married?

When people get married, they always stick a pair of dragons on both sides of the gate to see happiness.

See the origin of happiness by sticking to Qinglong. Words dry dragon emperor traveling incognito came to Qian Shan, the hometown of Xizhong, and Lu Yu blew a parade. Dry dragon emperor pinched his fingers and counted it as the day when five ghosts didn't marry.

I want to make it clear that when the wedding procession came to the groom's door, they stood by the door and looked in. When the bride got off the sedan chair and was about to meet the bride's groom, Master Gan Long shouted. Who chose the wedding day? There was silence.

After a while, an old man came to the door and bowed politely to Gan Long, saying that Five Ghosts shouldn't get married today. Although it is fierce, but there is a dragon guarding the door, it will naturally be killed. Please use the wedding bar for the elderly. From now on, when you get married, you will wear a pair of dragons to show your good luck.