In China tradition, dragons are regarded as mysterious and powerful creatures. The moral of female Dai Long is that she hopes to have unparalleled strength and courage and encourage herself to face the challenges and difficulties in life bravely. In the legend of the Han nationality, dragons can be hidden and displayed, reaching the sky in the spring breeze and diving in the autumn wind. It can also cause rain and clouds, and later became a symbol of imperial power. Fuxi and Nu Wa, ancestors in human legend, were both heads of dragons (or snake heads), also known as "ancestors of dragons". The ancestors of the Chinese nation, Yan Di and the Yellow Emperor, are said to have a close relationship with dragons. It is said that the Yellow Emperor Long Xuanyuan's Dragon Map Out of the River (Bamboo Book Year) was born for his mother and turned into a red dragon after his death. Therefore, China people call themselves "descendants of the dragon".