In no2DO trigram Kan, the water, is associated with the functional circuit kidney (KI), which is the seat of our spiritual heritage and origin of our will, determination, vitality and strength. The kidneys store the basic principles, the essential, the energy of our ancestors and the essence that creates new life. They represent a rich and concentrated source of energy and contain the reserves we can draw on in times of greatest need.
“King Wen Later Heaven” is one of the many ways how to attribute trigrams to phenomena of nature, the seasons, character traits, family relations, geographical directions etc.
However, this system is not fully compatible with the five elements theory, because King Wen’s Later Heaven only considers the classical four seasons, and ignores late autumn as the fifth season with its corresponding fifth phase element earth. After careful consideration, I have made a few changes to the order of King Wen’s Later Heaven which I explain in detail here: Trigrams, Elements, Functional Circuits