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Original study guide · 15

Hexagram 15 · Qiān (地山谦)

Direct summary

Hexagram 15, Qiān (地山谦), places Gèn (艮, Mountain) below Kūn (坤, Earth).

Its nuclear, opposite, and reversed forms are Hexagrams 40, 10, and 16.

Structure reading

The lower trigram is Gèn (艮, Mountain); the upper trigram is Kūn (坤, Earth).

Sequence context

In the received sequence, Hexagram 15 comes between Hexagrams 14 and 16.

Study prompt

Compare Hexagram 15 with its nuclear form (40), opposite form (10), and reversed form (16). Which comparison is easiest to describe from the structure alone?

Editorial references

  1. Yi structural index: King Wen number, name, trigrams, and nuclear, opposite, and reversed forms.
  2. Yi editorial method: site-authored guidance is kept separate from classical text.
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Yi original study guidance based on verified structural facts. No restricted source passage is reproduced.