The name 名
Shī 師 has two senses: a multitude, and an army. Once a crowd grows large enough it needs ranks and a commander; in the ancient system five men made a squad and, by multiples, 2,500 made a shī. The gua describes the moment a multitude becomes a force that may have to fight.
The image 象
Earth (Kūn, yielding) lies above Water (Kǎn, danger): water gathering unseen beneath the ground. Compliance on the surface, peril underneath — a situation that needs one strong figure to take command, or the crowd turns to disorder. Five yin lines and a single yang: that lone yang at the second place is the one who holds everything together.
Layers of images 層
A gua can be read on several levels at once: the trigrams as members of a family (father, mother, eldest to youngest sons and daughters), the six lines as ranks in an organisation (from newcomer to ruler), and as forces of nature and animals. Each extra level adds meaning to the line texts.
Read as a family
Below is Kǎn, the middle son; above is Kūn, the mother. The only yang line is Line 2, the man within Kǎn, surrounded by five yin lines, the many. The mother stands for the people and the land, the middle son for the one who goes out into danger: a son who can endure hardship takes up the fighting on behalf of the household and the realm.
Line 5, “the eldest son leads the army; the younger son carts home corpses”: lines 2–4 form a nuclear Zhèn, the eldest son, so the commander is Line 2. Line 3 completes the lower Kǎn, the middle son, not the eldest: he is the “younger son,” and when he is put in charge the dead come home on carts. In a family too, who carries the heavy load must not be left to chance.
Line 2, “in the midst of the army; good fortune; the king grants his commission three times”: the second place is the general in the field, the fifth the king; yang below and yin above correspond. Far away at court, the ruler fully trusts his commander at the front and honours him again and again: a model of ruler and official in accord.
Line 5, “there is game in the field; it is fitting to state the charge”: lines 3–5 form a nuclear Kūn, the field. Beasts are raiding the crops, and before taking up arms one must state the reason plainly. The ancients often used the same image for hunting and for war.
Top line, “the great ruler issues the mandate: found states, receive households; do not use petty men”: the war is over and merit is rewarded, the greatest with a state, the next with a household fief. The top place stands outside the action, the moment of settling accounts: a petty man who fought well may be rewarded, but not given power to govern.
Turn Shī over and you get Bǐ: water within the earth becomes water on the earth. Shī is groundwater gathering unseen, which may flow who knows where; Bǐ is water held on the surface by its banks, visible to all. After armed force, power must be turned into an order people can draw near to and trust.
Shī’s opposite is Tóngrén, Fellowship. The hidden side of leading troops is being of one heart with others. Raising an army should not be only about fighting but about binding people together; the lines of Tóngrén in turn keep mentioning weapons and troops, so the two hexagrams mirror each other.
In sequence 序
訟必有眾起，故受之以師；師者眾也。
The Sequence says: “Disputes are sure to raise up crowds, so Shī follows; Shī means the multitude.” Once a quarrel begins, each side gathers supporters; like-minded people cluster until there are camps, and camps become armies. From provisions (Xū) to dispute (Sòng) to mobilization (Shī) is a natural course for any human society.
The judgment 辭
師：貞丈人吉，无咎。
“The Army: steadfastness; with a venerable elder in command, good fortune, no blame.” The word zhàngrén, “venerable elder,” appears nowhere else in the classic, and some read it as dàrén, “great person”; either way it points to the one yang line at the second place. Steadfastness here is not stubbornness but holding to what is right. Good fortune with no blame means success now and no aftermath later — though the pressure along the way is real.
Commentary on the judgment 彖
彖曰：師，眾也。貞，正也。能以眾正，可以王矣。剛中而應，行險而順，以此毒天下，而民從之，吉又何咎矣。
The Tuan says that one who can lead the multitude onto the right path is fit to be king. “Firm and central, and answered” is the second line, centered and in accord with the fifth; “moving through danger yet compliant” is Kǎn below and Kūn above. “With this he doses the world” — the word dú, literally poison, means to put to service, and hints that war is like medicine: every drug is toxic, used only to cure a worse ill.
The great image 象
象曰：地中有水，師；君子以容民畜衆。
“Within the earth there is water: the Army. The noble person accordingly embraces the people and nurtures the multitude.” As the ground holds water within it, the noble person makes room for people and sustains them. Real strength is not drawn out in daily use; it lies in the patient care given to people in ordinary times.
The six lines 爻
Ruling line The second line, the only yang in the figure, is firm, central and trusted by the ruler at the fifth place — the “venerable elder” of the judgment and the line that makes the gua what it is.
The path of the six lines, bottom to top
Shī’s six lines run from setting out to the war’s aftermath. Line 1 is the army just marching out: it needs discipline, and without it disaster follows; Line 2 is the general in the field, trusted by the king and given commission after commission; Line 3, at the top of the lower trigram, is the wrong person in command, bringing home carts of the dead. Line 4 enters the upper trigram and knows to fall back and make camp, which is no mistake; Line 5 is the ruler, who must have a just cause and must entrust the eldest son, not the younger. At the top the war is over and merit is rewarded with states and fiefs, but petty men may be rewarded, never put in charge.
初六師出以律，否臧，凶。
In plain words
When the army sets out it must go by its regulations; if they are not kept, misfortune.
Close reading
A yin line in a yang place, out of position and without response from the fourth; yet it sits just below the second line, its one asset. It lies in Kǎn, water, and poured water always settles level — an image of fairness and rule. Pǐzāng means “not good,” not following the regulations; the Small Image says flatly: “losing discipline brings misfortune.” Discipline set at the outset is the precondition of every undertaking.
If you drew this line
Go by the rules and set principles and procedures clearly from the very first step; any thought of shortcuts or working around the rules should be dropped now.
Sun Wu and the Palace Women
King Helü of Wu, wishing to test Sun Wu, had him drill 180 palace women, with the king's two favourite consorts as captains. Sun Wu explained the commands repeatedly, then sounded the drum; the women burst out laughing. Unclear orders, he said, are the general's fault; orders made clear yet not obeyed are the officers' fault — and he ordered the two captains executed. The king hastily pleaded for them, but Sun Wu replied that a general in the field need not accept every royal command. When the drum sounded again, the women turned, advanced and knelt in perfect order.
九二在師中吉，无咎；王三錫命。
In plain words
In the midst of the army, holding the center: good fortune, no blame; the king three times confers his commission.
Close reading
A yang line in a yin place, not strictly in position, but central in the lower trigram and in true accord with the fifth: the commander of the whole army. Between second and fifth lie only yin lines, so nothing blocks the royal favour. The threefold commission recalls the Zhou rites: first an office, then robes of rank, then a title, step by step. The Small Image speaks of “receiving Heaven's favour” and “cherishing the myriad states”: a ruler of modest ability who wholly trusts one capable general can steady everything.
One level deeper
Line 2, “in the midst of the army; good fortune; the king grants his commission three times”: the second place is the general in the field, the fifth the king; yang below and yin above correspond. Far away at court, the ruler fully trusts his commander at the front and honours him again and again: a model of ruler and official in accord.
If you drew this line
You stand where you can carry the load, trusted and relied on. Lead your team from the center, fairly and steadily; the merit will be seen without any need to display it.
六三師或輿尸，凶。
In plain words
The army may come back with corpses in its carts: misfortune.
Close reading
Everything weighs against this line: a yin line in a yang place, no answer from the top line, and it rides above the commander at the second place. Kǎn, in carts, signifies many mishaps — hence the carts of dead. Misplaced yet eager to fight, it earns the Small Image's verdict: “a great failure.” When position, response and support all fail the check, do not count on luck.
If you drew this line
Out of place, unsupported, and overriding the person actually in charge: this is no time to act. Step back into your proper role and defer to the one who should lead.
六四師左次，无咎。
In plain words
The army withdraws and makes camp: no blame.
Close reading
A yin line in a yin place — correctly placed — but unanswered by the first line and without strength for battle; it can only follow the commander's orders. In ancient armies the right was honoured, so “left” implies giving way; cì means encamping for more than two nights. Unlike the third line, this one knows when to pull back, and the Small Image says it “has not departed from the norm”: retreat is no violation of sound strategy.
If you drew this line
When your strength falls short, stepping back and holding your ground is the right choice. Retreat is not defeat; conserve your strength and wait for direction.
六五田有禽，利執言，无咎。長子帥師，弟子輿尸，貞凶。
In plain words
There is game in the fields: it is fitting to declare the cause and seize it — no blame. Let the eldest son lead the army; if the younger ones share command and bring back corpses, persisting is ominous.
Close reading
A yin line in a yang place, soft but central, in accord with the second: the sovereign who appoints the commander. Lines three to five form a nuclear Kūn, the fields; game in the fields stands for those who prey on the people, and “declaring the cause” means going to war only with a stated, just reason. Lines two to four form Zhèn, the eldest son — the second line; the third line is the “younger son.” The Small Image: “the eldest son leads, acting from the center; the younger brings back corpses — the appointment was wrong.” The ruler need not fight; his responsibility is to choose well and keep command undivided.
One level deeper
Line 5, “the eldest son leads the army; the younger son carts home corpses”: lines 2–4 form a nuclear Zhèn, the eldest son, so the commander is Line 2. Line 3 completes the lower Kǎn, the middle son, not the eldest: he is the “younger son,” and when he is put in charge the dead come home on carts. In a family too, who carries the heavy load must not be left to chance.
Line 5, “there is game in the field; it is fitting to state the charge”: lines 3–5 form a nuclear Kūn, the field. Beasts are raiding the crops, and before taking up arms one must state the reason plainly. The ancients often used the same image for hunting and for war.
If you drew this line
State your reasons plainly, then give authority to the single most capable person; don't split command out of sentiment or hedging. If the wrong person is used, the fault lies with whoever chose them.
Changping: Zhao Kuo Replaces Lian Po
During the Warring States, Qin and Zhao faced each other at Changping. The veteran Lian Po held his fortified line and Qin could make no headway. Qin spread a rumour that the only general it feared was Zhao Kuo, and the king of Zhao, believing it, replaced Lian Po with this young man who knew the manuals by heart but had never commanded in the field. Lin Xiangru objected that Zhao Kuo could only recite his father's books; even Zhao Kuo's mother petitioned the king not to hold the family liable for what followed. Zhao Kuo overturned Lian Po's arrangements, was encircled by Bai Qi, and died; more than 400,000 surrendered troops were put to death. It is the starkest illustration of “the younger son brings back corpses.”
上六大君有命，開國承家，小人勿用。
In plain words
The great ruler issues his commands: founding states, establishing houses. Petty people must not be employed.
Close reading
A yin line in a yin place, correctly placed, unanswered by the third, standing at the war's end; the top place often signifies the ancestral temple, where rewards were conferred. The Small Image: “to set merit right” — rewards must follow actual achievement — and “employ petty people and the state will surely fall into disorder.” Cheng Yi observed that unscrupulous men may well win battles: reward them with gold, silk and stipends, but never give them a state to govern.
One level deeper
Top line, “the great ruler issues the mandate: found states, receive households; do not use petty men”: the war is over and merit is rewarded, the greatest with a state, the next with a household fief. The top place stands outside the action, the moment of settling accounts: a petty man who fought well may be rewarded, but not given power to govern.
If you drew this line
A phase has ended; it is time to recognize contributions and reassign roles. Be generous with reward, but hand authority only to those whose character matches their ability, and watch for opportunists.
Stories 典
Han Xin Is Made Supreme General
When Han Xin first joined Liu Bang he was given little to do, and he slipped away; Xiao He rode after him through the night and urged that he be made supreme general. Liu Bang was ready to appoint him offhandedly, but Xiao He objected: the king was habitually curt, naming a general as if calling a child — exactly why men like Han Xin left. If he meant it, he must choose an auspicious day, fast, build an altar and observe the full rite. Liu Bang did so, to the astonishment of the whole army. Han Xin then laid out the strategic picture of the realm and went on to lead the campaigns that subdued the rival states. A ruler need not excel his servants in everything; entrusting one able commander solemnly and with undivided authority is the lesson of the second and fifth lines.
A Young Salesman's Reading
A young man working in direct sales once drew Shī and could not make sense of it. Read by the gua's meaning, both senses of shī fit: a multitude — direct sales lives on a broad network of supporters — and an army — rivals were in the field and the pressure was heavy. He went pale and said that was exactly his situation. A casting speaks to the moment, not to a whole life; ask at another time and the configuration may differ. Seeing the present clearly is what tells you how to lead people and how to keep discipline.
Insight 悟
Shī is about how a group keeps order under pressure: discipline at the start, a just cause before acting, a single line of command, and fair reward and sanction at the end. A leader need not be the most capable person in the room, but must judge people well and trust them — and owns the failure when the choice is wrong. The fourth line reminds us that a timely retreat is no defeat; the third, that pushing forward from the wrong position is the gravest danger. “Bǐ is joy, Shī is worry,” says the Miscellaneous Commentary, and that worry is a kind of clarity: war is perilous, and real strength is the everyday work of embracing and sustaining people.