Water, the glyph comes from the hexagram in the Book of Changes, which is the first of the group classics, and the hexagram rotates 90 degrees to be water. In Li Ding Chinese characters, "Chuan" and "Shuo" are a pair of relative words. The so-called "relational characters" refer to a pair of Chinese characters with similar shapes and related meanings, such as Tian and You, Rabbit and Exemption, and Ge and Yi. The strokes of the word "Chuan" are vertical, symbolizing the flow of water, so-called "endless flow". The strokes of "water" symbolize the stillness of water, the so-called "clear water".
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Evolution process of water quality
Oracle Bone Inscriptions-bronze inscription-seal script-official script-regular script-cursive script-running script, which is the evolution of calligraphy font, evolved from Oracle Bone Inscriptions's hieroglyphics. At first (from Oracle Bone Inscriptions to Xiao Zhuan), the font was like a river, which was relatively curved, just like a river. Later (from official script to running script), we began to compare Fang, which is the word "water" we see now.