Six Relatives: Five Line Roles

The name is a little misleading at first.

A hexagram has six line positions, but this layer gives you only five role labels: Parent, Officer, Sibling, Wealth, and Child. The sixth item is not a role label. It is the World line, which marks the querent’s position and gets its own module next.

6 line positions

5 line roles

1 World position

So the working model is simple: five roles distributed across six visible lines, plus a separately marked World position. Some roles can appear twice. Some roles can be absent. That is normal.

The five roles

These are the labels to learn. They are not fixed to line positions. They are calculated from the relationship between the palace element and each line’s branch element.

Parent The line element generates the palace.

Documents, elders, support structures, vehicles, property, and parent figures later in interpretation.

Officer The line element controls the palace.

Authority, rank, pressure, illness, law, and constraining force later in interpretation.

Sibling The line element equals the palace.

Peers, competitors, colleagues, shared resources, and rivalry later in interpretation.

Wealth The palace controls the line element.

Money, possessions, trade, spouse questions, and usable resources later in interpretation.

Child The palace generates the line element.

Children, output, medicine, relief, expression, and what the situation produces later in interpretation.

Some older translations call this role Brother. This course uses Sibling as the working label. Both names point to the same structural role: the line element equals the palace element.

Source: Bushi Zhengzong and Zengshan Buyi independently enumerate the same five visible line-role families. Technical source labels are collected in Wen Wang Gua Terminology.

The rule

The palace element is the reference point. For a palace element X, compare each line element Y against X.

That is the whole derivation. The Five-Phase cycle gives exactly five possible relationships between any two elements: generation, control, same element, generated-by, and controlled-by. There is no sixth relationship, which is why there are only five visible role labels.

For now, use the short cycle:

• Generates: Wood → Fire → Earth → Metal → Water → Wood
• Controls: Wood → Earth → Water → Fire → Metal → Wood

A useful mnemonic: the palace is the household. Whoever feeds the household is Parent. Whoever disciplines or threatens the household is Officer. Whoever shares its element is Sibling. Whoever the household can command is Wealth. Whoever the household produces is Child.

Source: the Five-Phase generation/control framework underlies the later strength rules as well. Act III formalizes the seasonal-strength layer; here we only need the relationship geometry.

Same line, different palace

The easiest way to see the rule is to hold a line steady and change only the palace.

Same branch. Same line position. Same element. Different palace element. The role changes from Parent to Wealth because the comparison changed.

That is why Act II moves in this order: palace → palace element → branch labels → line roles. If the palace is wrong, the palace element is wrong, and every role label can silently go wrong after that.

Case 1 as a line map

Case 1’s primary hexagram is Qian over Heaven, in the Qian palace. The palace element is Metal. The six line elements are Water, Wood, Earth, Fire, Metal, Earth.

Run each one against Metal:

Every label on the cast is reproducible from one rule. Parent appears twice because two lines carry Earth, and Earth generates the Metal palace. That doubling matters later when we learn target-line selection. For now, the important point is that repetition is expected.

The opposite can also happen. A chart may have no visible Wealth line, or no visible Parent line, because none of the six branch elements happen to fall into that relationship with the palace. When the question needs a missing role, the system has a hidden-line procedure. That belongs to Act IV.

Derive, do not memorize

It is tempting to memorize layouts: “in Qian over Heaven, line 4 is Officer.” That works until it doesn’t. Across 64 hexagrams and 8 palaces, memorized line-role charts become fragile.

Derive every time. The operation is small:

1. Identify the palace element.
2. Take each line’s branch element.
3. Compare it to the palace element.
4. Assign Parent, Officer, Sibling, Wealth, or Child.

Target-line selection later depends on these labels. A wrong role label sends the reading toward the wrong subject. That is why this layer needs to be mechanical and boringly reliable.

Source: Zengshan Buyi’s target-line chapter, as cited in the source synthesis, warns that wrong target-line selection makes the reading useless.

Role is not meaning

A Wealth line is not automatically “money.” It is the line whose element is controlled by the palace element. That structural fact is true whether the question is about a spouse, a bank account, a client invoice, or a purchase.

The domain meaning comes later. In practical routing, a father question looks for Parent, a promotion question looks for Officer, a money question looks for Wealth, and a child question looks for Child. But the label itself is structural first.

Case 1 is a useful warning. The question is about the querent’s father. The father is not “the top line” and not automatically the World line. The father is wherever the Parent role appears. In Case 1, Parent appears on lines 3 and 6, so the later target-line logic has to choose between them.

The same discipline keeps the moving Officer line from being overread too early. Officer can be associated with illness in some domains, but in this module it is simply the line where Fire controls the Metal palace. The story comes later. First we label cleanly.

Where this lands us

You can now label every visible line of a cast. Take the palace element. Compare each branch element. Assign the role.

The missing “sixth relative” is the self position. That is not a role label. It is the World line, paired with the Response line, and that is the last major piece of the static skeleton.

Next: 2.5 World and Response.