Some images in Mogao caves 249, 285, and 297, including King Father of the East, Queen Mother of the West, Fuxi, Nüwa, god of thunder, Kaiming, Feilian, Blue Dragon, White Tiger, Scarlet Bird, Black Tortoise, Fangshi (alchemist), and feathered human beings, are Taoist creation or mixtures of both Taoism and Buddhism. All these opinions are not pertinent. Actually, they reflected Buddhist absorption of mythological and Taoist themes. Buddhism strengthened itself by absorbing non-Buddhist themes and then overshadowed Taoism. This also means that Dunhuang Buddhism in the Northern Dynasties had broken through the limitation of Buddhist scriptures and stepped toward secularization.