Hexagram 41: Decrease → Hexagram 51: The Arousing Thunder

Decrease
Mountain / Lake
The Arousing Thunder
Thunder / Thunder
Changing LinesStable Lines

Changing Lines

This transformation involves 3 changing lines (lines 2, 4, 6).

Line 2

九二 利貞。征凶。弗損益之。

(it is) worthwhile
zhēnto persist
zhēng(but) to expedite
xiōng(is) ill-omened
(there is) neither
sǔn(of
(nor
zhīhere

Nine in the second place means: Perseverance furthers. To undertake something brings misfortune. Without decreasing oneself, One is able to bring increase to others.

Line 4

六四 損其疾。使遄有喜。无咎。

sǔndecreasing
these
afflictions
使shǐ(to) take(ing) control
chuánexpeditiously
yǒu(and) be
glad
(this is) no
jiùwrong

Six in the fourth place means: If a man deceases his faults, It makes the other hasten to come and rejoice. No blame.

Line 6

上九 弗損益之。无咎。貞吉。利有攸往。得臣无家。

(there is) neither
sǔn(of
(nor
zhīhere
(there is) nothing
jiù(is) wrong
zhēnpersistence
(is) promising
worth(while)
yǒu(to) have
yōusomewhere
wǎngto go
(but) (one) accept
chénservants
(but) not
jiāfamily

Nine at the top means: If one is increased without depriving others, There is no blame. Perseverance brings good fortune. It furthers one to undertake something. One obtains servants But no longer has a separate home.

Trigram Changes

Upper TrigramMountain ThunderKeeping Still → The Arousing
Lower TrigramLake ThunderThe Joyous → The Arousing

Yilin Verse

晨夜驚駭,不知所止。皇母相佑,卒得安處。

Dawn and night, startled and terrified; not knowing where to stop. The August Mother offers her aid; at last finding a place of peace.

— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE

Commentary

Mountain above lake yields to doubled thunder — the Arousing, shock upon shock. Night and morning, one is startled and terrified, not knowing where to stop. Yet the Divine Mother offers her protection, and finally one finds a place to rest. The verse moves from disorientation to rescue: the shaking never stops until a maternal force intervenes. From Decrease to the Arousing, the mountain splits into thunder while the lake adds its own rumble — double thunder, the hexagram of successive shocks that test the cultivated person. Decrease's steady discipline is violently disrupted, but the verse promises that after the shaking subsides, a sacred protector ensures survival. The 'Imperial Mother' may reference a deity like the Queen Mother of the West — celestial compassion descending to steady what Decrease alone cannot hold.

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