Legend has it that Nuwa refining stone to make up for the sky left a piece of unused, abandoned under the green stem peak, after this stone psychic begged a monk to enter the world together, witnessing a tearful relationship. If another divine stone was abandoned on the bank of the Western Spirit River back then, it would be accompanied by the Zhuzhu grass. The bead grass cultivated in human form to return the favor, and the stone also cultivated to the human form in the lower realm, but faced the end of "tears and death". The stone was unwilling, and the heavenly court was in danger of falling into the devil's way, but fortunately an immortal monarch helped him.