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Original study guide · 16

Hexagram 16 · Yù (雷地豫)

Direct summary

Hexagram 16, Yù (雷地豫), places Kūn (坤, Earth) below Zhèn (震, Thunder).

Its nuclear, opposite, and reversed forms are Hexagrams 39, 9, and 15.

Structure reading

The lower trigram is Kūn (坤, Earth); the upper trigram is Zhèn (震, Thunder).

Sequence context

In the received sequence, Hexagram 16 comes between Hexagrams 15 and 17.

Study prompt

Compare Hexagram 16 with its nuclear form (39), opposite form (9), and reversed form (15). 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.