震 → 兌
Hexagram 51: The Arousing Thunder → Hexagram 58: The Joyous Lake
Changing Lines
This transformation involves 2 changing lines (lines 2, 5).
Line 2
六二 震來厲。億喪貝。躋于九陵。勿逐。七日得。
Six in the second place means: Shock comes bringing danger. A hundred thousand times You lose your treasures And must climb the nine hills. Do not go in pursuit of them. After seven days you will get them back again.
Line 5
六五 震往來厲。意无喪有事。
Six in the fifth place means: Shock goes hither and thither. Danger. However, nothing at all is lost. Yet there are things to be done.
Trigram Changes
Yilin Verse
馬能負乘，見邑之野。并獲粢稻，喜悅无咎。
The horse can bear its load; it sees the fields of the town. Together harvesting millet and rice; joyful and without blame.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Thunder doubled meets doubled lake: shock dissolves into the open delight of The Joyous. The horse can bear both rider and cargo; it sees the fields beyond the town walls. Harvesting millet and rice together, there is joy without blame. The horse here is a capable creature — bearing double loads without complaint, surveying open farmland, a figure of productive abundance. The harvest of both millet and rice represents complementary gains. From The Arousing to The Joyous, paired lakes, the verse shows thunder's energy pooling into shared celebration. Friends gathering to study and discuss — the lake's joy is communicative, spreading from one to another. The horse that carries both burden and rider to the abundant field embodies joyful labor: effort that yields pleasure rather than exhaustion.
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