兌 → 震
Hexagram 58: The Joyous Lake → Hexagram 51: The Arousing Thunder
Changing Lines
This transformation involves 2 changing lines (lines 2, 5).
Line 2
九二 孚兌吉。悔亡。
Nine in the second place means: Sincere joyousness. Good fortune. Remorse disappears.
Line 5
九五 孚于剝。有厲。
Nine in the fifth place means: Sincerity toward disintegrating influences is dangerous.
Trigram Changes
Yilin Verse
營城洛邑，周公所作。世建三十，年歷七百。福祐盟執，堅固不落。
Building the city of Luoyi, the Duke of Zhou's creation. Thirty generations established, seven hundred years endured. Fortune guards the oath and pledge; firm and solid, never falling.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Paired lakes meet doubled thunder — The Arousing, the shock that inaugurates new orders. The Duke of Zhou built the city of Luoyi, establishing the eastern capital of the Zhou dynasty. Thirty generations held power; seven hundred years of history unfolded. Blessings sustained the covenants, solid and unshaken. According to tradition, the Duke of Zhou surveyed and constructed Luoyi as the administrative center for governing the eastern territories after the Zhou conquest. From The Joyous to The Arousing, joy becomes the founding shock that reverberates across centuries. Thunder upon thunder — the double strike that does not merely disturb but establishes. A single act of construction echoes for seven hundred years.
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