When the bride enters the room, she will light an oil lamp and it will go out the next day, which is called "longevity lamp". Lamp oil mixed with honey indicates that couples can be close. The folk marriage customs of the Han nationality are popular in Hengshan, Shaanxi and Hexi Corridor, Gansu. Local farmers must light a lamp in their wedding bridal chamber, from sunset to sunrise the next day, at least one day, or three days. This is a symbol. Couples should use a desk lamp when they get married. It is called longevity lamp. The wedding night should be lit all night and cannot be put out. It is said that the longer you order, the better. Who didn't ask? The couple ordered it themselves! If you are good, find a kind and harmonious family!