In ancient times, there was a divine lamp, called Liuli, with a colorful halo, which was made from the blue dew of Yaochi, crystal stones from the Western Mountains, and the tears of Nuwa. It has the ability to collect souls and is a gift from Bai Zhi, the daughter of the Emperor of Heaven.
Since the reincarnation of the goddess Bai Zhi, she has been lost and has never been found again.