You can't. Chengdu Flower Night Wine is a traditional folk custom in Chengdu. It was a dam banquet held at home the night before the bride got married to entertain those good sisters and brothers. After everyone gets together, the sisters will sing the night songs to the bride, and the bride will also take the night songs to climb mountains, drink the night wine and throw hydrangeas. It is said that this is a traditional custom in Chengdu. Everyone will eat this kind of dam feast, have a good time and throw hydrangeas.