féi (肥)

literally means “fat, fertile, or rich;” it can also mean “loose-fitting, loose, or even large;” relative to the còulǐ (腠理), as in the opening passage of Língshū 47, both meanings have significance. When the openings through which wèiqì (衛氣) flows are loosened up, the skin will be plumped up, and the person appears young and vital. When wèiqì (衛氣) flows sufficiently well, the pores can open to allow perverse qì (xiéqì (邪氣)) to release to the exterior.

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