The "Beidou Zhifa Wuwei Jing" () states that Jiutian Xuannü taught the method to mobilize the stars of the Northern Dipper to Yuan Qing (), an official during the transition from the Sui to the Tang dynasty. The method is known as "Beidou Shi'er Xing" (, translated "Twelve Stars of the Northern Dipper"). The "Shangqing Tianxin Zhengfa" (), produced in the Southern Song period, gives an incantation entitled "Tiangang Shenzhou" (, translated "Incantation of the Heavenly Mainstay") that accompanies the method.