The field of Chinese metaphysics for its many application systems, heavily relies on such basic tools as Hetu Yellow River Map (河圖), Xiantian Gua (先天卦) – or Former Heaven sequence of Trigrams, and Houtian Gua (後天卦) – or Later Heaven sequence of Trigrams. While Magic Square and Luoshu (洛書) are not synonymous, yet, these terms […]