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Original study guide · 51

Hexagram 51 · Zhèn (震为雷)

Direct summary

Hexagram 51, Zhèn (震为雷), places Zhèn (震, Thunder) below Zhèn (震, Thunder).

Its nuclear, opposite, and reversed forms are Hexagrams 39, 57, and 52.

Structure reading

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

Sequence context

In the received sequence, Hexagram 51 comes between Hexagrams 50 and 52.

Study prompt

Compare Hexagram 51 with its nuclear form (39), opposite form (57), and reversed form (52). 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.