What are the original writing rules of China's calligraphy?

The word "Bu" in Oracle Bone Inscriptions's Oracle Inscriptions is a hieroglyph of omen. Burning is divination, and people judge the success or failure of the asked affairs by puncturing the divination pattern composed of Cho Chien and Zhao Zhi. On the front of Oracle Bone Inscriptions, next to the symbol, the content of divination is recorded in words, which is Oracle Bone Inscriptions. This is a complicated but rigorous procedure. Oracle Bone Inscriptions followed a set of strict procedures, which laid the initial writing rules of China's calligraphy.