In Yuelao's Karma Hall in the Heaven Realm, four magical instruments, namely the Changsheng Flute, the Chang'an Qin, the Changle Drum, and the Chang Huan Zheng, have been enshrined. These four magical instruments have led to the two sacred instruments of the Jieyu Ling and the Mirror of Past Life.
One is the owner of the mirror in the previous life, the Magpie Immortal from the Hall of Karma, and the other is the Master of the Jieyu Order. The Jie Yu Ling can not only mobilize the thunder and lightning, and call for wind and rain, but it can also summon soul dreams and reverse emotions. Ling Xiaoyu, if one day you forget me, I will use the Jieyu Ling to capture your dreams, and you will only have me in your heart.