What is the relationship between the flying goddess and Lanzhou? Why are there flying goddesses on cigarettes and buses in many buildings in Lanzhou?

Flying image in Dunhuang murals. Tian Fei is the embodiment of Manna, the god of songs, and Kinnara, the god of music. It turns out that they are the gods of song and dance and entertainment in ancient Indian mythology. They were a couple, and later they were absorbed into the Dragon Ba Shen by Buddhism. Flying in Dunhuang is a flying god painted in Dunhuang grottoes, and later became a special term for Dunhuang mural art.