Exact classical source
雷电，噬嗑。先王以明罚敕法。
Yarrow editorial translation. Thunder and lightning: Biting Through. Thus the ancient kings made consequences clear and rules firm.
Yarrow / Source Notes / 2026-07-17
Yarrow Image-to-Action note · 2026-07-17
Write the Rule Before You Enforce It
Read Hexagram 21 Shi He through force joined with clarity, then turn an unwritten moderation habit into a visible rule and appeal path.
䷔
Hexagram 21 · Shi He · Biting Through
This page studies a supplied Xiang image. It does not claim this hexagram was cast for the modern scene.
Source image
Thunder is heard and lightning is seen in the same event, joining unmistakable force with unmistakable illumination.
Concrete tension
A community removes posts under an unwritten rule, so members cannot know the boundary until after they cross it.
Visible modern action
Publish one moderation rule with one allowed example, one disallowed example, one proportionate consequence, and one appeal path. Pin it for seven days before applying it to any new case covered by that rule.
Why this action comes from this source
The source pairs force with clarity rather than allowing enforcement to remain hidden. The two examples illuminate the boundary, the stated consequence limits discretion, and the appeal path provides a second reading before the rule becomes only an exercise of power.
Reflection question
What boundary are people punished for before they can see it?
Audience value
Informative and caring: members receive a visible standard, contrasting examples, a limited consequence, and a route to challenge error.
Source boundary
The Chinese quotation is checked against Yarrow's bundled Yang Tiancai and Zhang Shanwen source text. Where that OCR witness substitutes a character, the page discloses the raw reading and checks the correction against a second classical witness. The English translation, objects, tension, and action are modern Yarrow editorial work. This is not a fresh cast, prediction, or promised outcome.