Hexagram 34: The Power of the Great

Trigrams

Upper trigram: Zhen (Thunder) · Lower trigram: Qian (Heaven)

Judgment

Favorable to persevere.

Image

Thunder above heaven: great power. The noble one does not act contrary to propriety.

Meaning of Hexagram The Power of the Great

The Power of the Great (大壯) is hexagram #34 of the 64 I-Ching hexagrams, formed by the upper trigram Zhen (Thunder) and lower trigram Qian (Heaven). It represents great strength must be guided by rightness, not force alone. When this hexagram is cast, the querent should meditate on the judgment and image to grasp what the Yi is saying about the current situation.

The Six Lines Explained

Line 1 (Nine)

"Zhuang yu zhi, zheng xiong, you fu (Strength in the toes; advancing brings misfortune, this can be trusted)"

Strength shows in the toes; to advance brings misfortune — this can be trusted with certainty. This low line is eager to advance but not yet ready, likely to stumble if it acts hastily.

Line 2 (Nine)

"Zhen ji (Rectitude brings good fortune)"

Holding to correctness brings good fortune. This is a firm yang line in the central position; though not perfectly correct in position, by holding the middle way it remains fortunate.

Line 3 (Nine)

"Xiaoren yong zhuang, junzi yong wang. Zhen li, di yang chu fan, lei qi jiao (The petty use force, the noble do not; even rectitude is perilous, like a ram butting a fence and injuring its horns)"

The petty person relies on force, the noble person does not; even holding to what is right is dangerous here, like a ram butting against a fence and hurting its horns. This is a stern warning against the reckless, unrestrained use of strength.

Line 4 (Nine)

"Zhen ji, hui wang, fan jue bu lei, zhuang yu da yu zhi fu (Rectitude brings good fortune, regret vanishes; the fence opens without harm, strong as a great carriage with a sturdy axle)"

Holding to what is right brings good fortune, and regret disappears; the fence has opened, and one advances powerfully as if riding a great carriage with a firm axle. This line, at the most favorable moment, has gathered enough yang strength to advance steadily if it keeps to proper principles.

Line 5 (Chu Six)

"Sang yang yu yi, wu hui (Losing the ram's aggression through ease and good humor brings no regret)"

Dissolving the flock's aggressiveness through cheerful ease brings no regret. This high but yielding (yin) line must use gentleness and softness to restrain the aggressive strength below, rather than confronting it directly.

Line 6 (Chu Six, Top)

"Di yang chu fan, bu neng tui, bu neng sui, wu you li, jian ze ji (The ram butts the fence, unable to retreat or advance, nothing gains; perseverance through hardship brings good fortune)"

The ram butts the fence and gets stuck, unable to advance or retreat, gaining nothing; only enduring hardship brings good fortune. This final line, excessively aggressive yet powerless, falls into a dilemma of neither advancing nor retreating — only patience and perseverance can free it from this impasse.

The Transformed Hexagram

The hexagram has Qian (Heaven) as the inner trigram and Zhen (Thunder) as the outer trigram. It represents the stage of growing yang strength in the twelve waxing-and-waning hexagrams cycle (Fu → Lin → Tai → Da Zhuang → Guai → Qian). When a line moves, the resulting hexagram varies according to its position.

Applications by Area of Life

Work & Career

This is a period of growing strength and capability, favorable for development. However, one must avoid excessive arrogance and aggression (as warned in lines 3 and 6) — great success must be accompanied by discipline and moderation.

Love & Relationships

One should avoid being forceful or rigid in expressing strong feelings (as in the image of "the ram butting the fence"). Gentleness and tolerance (as in line 5) are sometimes more effective than direct confrontation.

Health

This is a vigorous period, but one should avoid excessive exertion or activity that leads to injury (as in the image of "butting the fence and getting hurt").

Wealth

A favorable time for expanding and developing finances (especially as indicated by line 4). However, one should avoid reckless, overly aggressive investment that could lead to unnecessary risk.

Frequently Asked Questions about The Power of the Great

What does Hexagram Thunder over Heaven (Da Zhuang) mean?

Da Zhuang means great strength, vigor. This hexagram speaks of a period when strength (yang) is developing powerfully and full of vitality.

Why does Da Zhuang (great strength), despite its name, have no line that is truly "very good"?

Because, as the closing commentary notes, even in a favorable period, people in times of prosperity easily become arrogant and act wrongly — the I Ching always reminds us to guard against hidden calamity even during flourishing times, and not to grow complacent.

What is the meaning of the image "the ram butting the fence" in this hexagram?

This image warns against aggression and the unrestrained, unwise use of force — even with great strength (yang at its height), failing to exercise control leads to a situation of being stuck, unable to advance or retreat.