Zhong Fu is the hexagram of sincerity. The figure's center is open — two solid lines at the ends framing a hollow middle — and the old readers saw a heart emptied of guile, a truth that can be trusted because there is nothing hidden in it. The judgment's image is strange and telling: pigs and fishes. The least responsive of creatures, the text says, are moved by an inner truth that is complete. Sincerity, when it is whole, reaches even what reason cannot persuade.
Turned toward the working life, the figure is about trust as the foundation of every undertaking. The judgment adds that it furthers one to cross the great water — the book's phrase for the risky venture, which succeeds only where there is the confidence that inner truth brings. The first line, being prepared brings good fortune, but secret designs are disquieting, was the commentators' plain rule: the honest plan rests easy, while the hidden one keeps its maker awake.
For the bonds between people, Zhong Fu was read as the heart that does not need to explain itself. The second line is the book's most tender verse: a crane calling in the shade, and its young answers it — I have a good goblet, I will share it with you. The ancients saw here the way sincerity passes between people without force, like a call answered from the shadows. It is the picture of trust so complete that a word, quietly spoken, finds its answer at once.
Within a cycle, this figure marks a phase when the honest course is also the effective one, a stretch when what is genuine carries further than what is clever. The image of wind over the lake is the book's picture of a gentle influence moving across the deep and stirring it to its bottom. The counsel is to keep the center open and the motive clean, and to trust that a truth which is whole reaches further than any argument.
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Cast the I Ching Oracle → Free · No sign-up · 3,000-year-old methodSource: Judgment and line texts follow the Wilhelm/Baynes rendering of the Yijing.