Although they have adopted a modern and simplistic convention for naming the days with numbers, Chinese cosmology of the five elements 五行
wu xing, shown in the chart above (Japan uses the same ideograms), is very interesting.
The Five Elements is one of three prevalent philosophies that is applied to various parts of Chinese culture, including medicine, and categorizes all things into the domain of one of those symbols based on its observed interactions with the other four elements.
The so-called Yin-Yang symbol in the center of the Five Elements flowchart below is the
Tai Ji Tu 太極圖, which is another philosophical system of understanding the interaction of forces.
Such philosophies of non-material forces and their understanding is almost extinct in the post-Enlightenment, materialist West, but even Mao could not wipe it out in China, not that he specifically tried, but so much else was lost.
The chart below shows the observed patterns of different elements creating, destroying or attenuating other elements. Some of the jargon is symbolic and flowery.
In Chinese medicine, wu xing provides a conceptual model that allows for diagnosis and treatment that a few Chinese medicine docs I know have told me is about 80% or more reliable for treatment and predicting how things will go.
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