需 → 豫
Hexagram 5: Waiting → Hexagram 16: Enthusiasm
Changing Lines
This transformation involves 5 changing lines (lines 1, 2, 3, 4, 5).
Line 1
初九 需于郊。利用恆。无咎。
Nine at the beginning means: Waiting in the meadow. It furthers one to abide in what endures. No blame.
Line 2
九二 需于沙。小有言。終吉。
Nine in the second place means: Waiting on the sand. There is some gossip. The end brings good fortune.
Line 3
九三 需于泥。致寇至。
Nine in the third place means: Waiting in the mud Brings about the arrival of the enemy.
Line 4
六四 需于血。出自穴。
Six in the fourth place means: Waiting in blood. Get out of the pit.
Line 5
九五 需于酒食。貞吉。
Nine in the fifth place means: Waiting at meat and drink. Perseverance brings good fortune.
Trigram Changes
Yilin Verse
冬無藏冰，春陽不通。陰流為賊，國被其殃。
In winter, no ice is stored; in spring, the yang cannot flow. Yin becomes a hidden thief; the state bears its ruin.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Clouds above heaven shift to thunder bursting from the earth in Enthusiasm. Winter passes without stored ice; spring's yang energy cannot circulate properly. When the seasonal rhythm breaks, yin flows unchecked and becomes pestilential, and the state suffers calamity. The verse draws on the Liji's 'Monthly Ordinances': the Son of Heaven must store ice in winter for summer rituals; failure to do so disrupts the cosmic order. Ice storage was governance made tangible — a ruler who neglects seasonal duties invites natural and political disorder alike. From Waiting to Enthusiasm, the nourishing clouds should have become joyous thunder, but mismanaged timing turns celebration into catastrophe.
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