In the "Laozi Zhongjing" (), Jiutian Xuannü is described as one of the three deities who are sitting on divine tortoises. The author comments: "The Mysterious Woman is the mother of the Way of the void and nothingness." The text gives instructions to adepts: "Close your eyes and meditate on a white breath between your shoulders. In its centre is a white tortoise. On top of the tortoise is the Mysterious Woman." There are two governors beside her, which adepts are instructed to summon by saying: "Governor of Destiny and Governor of the Registers, pare so-and-so's name from the death list and inscribe it on the Life List of the Jade Calendar." This ritual therefore points to a procedure in which a long life is promised.