yú (俞)

literally means “to consent,” though it is often used as an abbreviated form of shù (腧) with the flesh radical on the left. 腧穴 (shùxué) is a common name for acupuncture points. Yet, these phrases refer to very specific points; so yú (俞), as an abbreviated form of shù (腧) appears to be used as an alternate form of shū (輸), meaning “to transport;” these are the five or six special points on each mài (脈), where it is characterized by a specific quality of qì flow; these shū (輸) are the points identified for each vessel flux in Língshū, chapter 2, and they remain core information for all acupuncture students to learn.

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