"The beauty of heaven and earth, the essence of the sun and the moon, are combined into jade." The medical and health care function of jade on human body was discovered and used by the ancients long ago. As the imperial pillow of the ancient emperor, the jade pillow has a history of more than 2000 years. According to historical records, several longevity emperors in China, such as Wu Zetian, Qianlong, Kangxi and Cixi, used jade as pillows and beds all their lives. The little dragon girl written by Jin Yong was passed down by Master as a bed of cold jade. The little dragon girl is on the cold jade bed whether practicing or sleeping. It's really beautiful and amazing, which shows the effect of jade on human body.