kè qì
Also rendered: Visiting qi (this site; literal from the two graphs, and it keeps the sense of 客 as a sojourner — qi that is present but does not belong) · Invading qi (the reading that takes 客氣 as evil from outside; sharper, and it commits to one of the two commentaries)
Reviewed · 2026-10-05
At a glance
Visiting qi — 客 kè, a guest; 氣 qì, qi — the qi that comes from outside and lodges where it does not belong. 《說文》 has 客,寄也, to lodge, which is exactly how 素問 uses the graph for evil: not owned, not native, staying anyway. This chapter gives it once, paired with its opposite: 人有客氣,有同氣. The two readings of that pair have never been reconciled. 馬蒔 takes 客氣 as the evil arriving from without and 同氣 as the qi one is born with. 張介賓 reads both through the doctrine of the circuit qi — 客氣 the qi that moves and never repeats, 同氣 the seasonal qi that is the same year after year. The sentence that follows is about the passages, not about either word, so the chapter gives no help; both are recorded. The word is not otherwise used in the chapter, and it does not appear in any chapter transcribed on this site before this one.
Passages where the term does real work, with the original, pinyin and English on the same line.
Every rendering below is a decision about which reader is being addressed. There is no neutral option.
| This site | visiting qi | literal from the graphs — 客 a guest, 氣 qi — and kept rather than replaced, because 客 in 素問 means lodging rather than attacking, and that is the whole of what the chapter says about it |
| Later usage | ke qi, guest qi | how the word travels in English writing on Chinese medicine, transliterated with a gloss; the same word is also the standard term for the moving circuit qi, which is one of the two readings and not the other |
| Clinical | invading qi, exterior evil | 馬蒔's reading, made explicit; right if the pair is about inside and outside, and it rules out 張介賓's reading, which is about the calendar and not about invasion at all |
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