We all know that Early Heaven BaGua is a cosmic presentation of ancient Chinese astronomy. While, there are many categories of Early Heaven BaGua representation such as Qian 乾 is the Sky / Heaven, few discussed the solar planets categorization. It is an important fundamental to 5 Elements studies.
Have you ever thought about this: Hetu as numeral presentation of Early Heaven has 5 pairings: 1&6, 2&7, 3&8, 4&9, and, 5&10. Then, why are there only 8 Gua in Early Heaven?
