2, Lahai this day have eaten Lahai porridge custom. China's history of drinking congee on the eighth day of the month, has been more than a thousand years. The earliest began in the Song Dynasty. Every Lahai day, whether it is the court, the government, the temple or the people's home to do Lahai congee. In the Qing Dynasty, the custom of drinking Laha congee was even more prevalent. In the court, the emperor, the empress, the emperor's son, etc. to the civil and military ministers, courtesans to give Laha congee, and to the various monasteries to distribute rice, fruit, etc. for the monks to eat.