predicting the future of China, and is written by Li Chunfeng and Yuan Tiangang (袁天罡), and has been compared to the works of famous western prophet Nostradamus
Qin Qiong (秦瓊) Xiao Yu (蕭瑀) Fu Yi (傅奕) Yin Kaishan (殷開山) Yuan Tiangang (袁天罡) Li Chunfeng (李淳風) Li Yuan, Emperor Gaozu of Tang (唐高祖李淵) Li Jiancheng (李建成)
(称骨歌) – Songs on Weighing Bones, fortune telling method by Yuan Tian Gang (袁天罡), involves adding up the "astrological weight" of the four time components
mansions were also used to count days. In the Tang dynasty, Yuan Tiangang (袁天罡) matched the 28 mansions, seven luminaries and yearly animal signs to yield
the Southern Song period, gives an incantation entitled Tiangang Shenzhou (天罡神咒, translated "Incantation of the Heavenly Mainstay") that accompanies the