Let's look at Guo Lao Xing Zong or Xing Xue Da Cheng first.

let's look at the stars first. Both Xing Xueda Cheng and Guo Laoxing Sect are astrological classics worth reading. We should first look at Xing Xueda Cheng to understand the astrological principles and methods of Qintang Sect, and then look at Guo Laoxing Sect to master the astrological skills and applications of Guo Laoxing Sect. This will give you a comprehensive and in-depth understanding of China's classical astrology.