>The Schematic, Not the Poem

Most readers run the hexagram as poetry. There is a second mode — compile it as a circuit.

Most Western encounters with the I-Ching are literary. You cast a hexagram, read the Judgment and Image, sit with the line statements, and contemplate. That tradition is old and worth keeping. But it is not the only way the hexagrams have been engaged.

Liu Yao (六爻) means "six lines." It names a formalized analytical system established by Jing Fang (京房, 77–37 BCE) in the Western Han, building on earlier traditions including the Qian Zuo Du (乾鑿度). Jing Fang took the 64 hexagrams and mapped a complete structural framework onto every line. The poem becomes a working diagram — defined relationships, element interactions, positional logic. Where literary reading asks what does this image suggest, Liu Yao asks what are the structural dynamics between these positions. Not competing modes. Parallel compilers reading the same source.

The first pass is najia (纳甲), "attaching the stems." Each line is assigned a Heavenly Stem (天干) and an Earthly Branch (地支). The Stems cycle through ten characters; the Branches through twelve — the same twelve that form the Chinese zodiac. The assignment is not free-form. It follows rules keyed to which trigram occupies the upper and lower halves, and to which palace (宫) the hexagram belongs. Each of the eight trigrams governs a palace of eight hexagrams, and the palace fixes which stems and branches bind to which lines.

This is addressing, not decoration. Every branch carries an elemental charge — Wood, Fire, Earth, Metal, Water — and a temporal marker. Once the branches are written in, the hexagram stops being a stanza and becomes a system of interacting elements. You can read which lines feed each other, which conflict, and which sit active or dormant on a given day.

The Six Relatives (六亲) are the relational categories that define how each line stands to the hexagram's palace element (宮位五行). There are five:

• Parent (父母) — the element that generates the subject. Documents, shelter, elders, protection.
• Sibling (兄弟) — the same element as the subject. Peers, competition, obstacles to wealth.
• Offspring (子孫) — the element the subject generates. Children, freedom, joy — and the suppression of authority.
• Wealth (妻財) — the element the subject conquers. Money, spouse, material gain.
• Authority (官鬼) — the element that conquers the subject. Officials, pressure, illness — and also career and status.

Two positional markers anchor every cast: the Subject line (世) and the Object line (應). Not relatives — coordinates. They identify the querent and the matter asked about, and their placement sets the reading's orientation. Ask about a career and you watch the Authority line. Ask about money and you watch Wealth. The Six Relatives assign each line a function relative to your actual question. That is what makes the method answer specific inquiries instead of returning a mood.

The Five Elements (五行) interact through two cycles. Generating: Wood feeds Fire, Fire feeds Earth, Earth feeds Metal, Metal feeds Water, Water feeds Wood. Controlling: Wood checks Earth, Earth checks Water, Water checks Fire, Fire checks Metal, Metal checks Wood. Inside a Liu Yao reading these run between the lines themselves.

A Wealth line generated by its neighbors is strong. An Authority line controlled by the Day Branch is weak. The day and month of the cast act as external load — strengthening or starving specific branches from outside the diagram. This is where the method turns genuinely analytical. You are not interpreting imagery. You are reading a field of forces and assessing relative strength, against rules, precedents, and a body of case literature stretching back nearly two thousand years.

The literary tradition is beautiful, and Liu Yao does not overwrite it. "Thunder over the lake," "wind following fire" — the Judgment and Image are contemplative literature that speaks to something past technical reach. The structural pass runs alongside. Many serious practitioners load both: classical text for counsel, Liu Yao for clarity. They illuminate each other. A hexagram whose imagery reads gentle can expose tension in its branch interactions; a Judgment that sounds severe can show favorable dynamics in the Six Relatives. Professional practitioners in China, Taiwan, and Hong Kong overwhelmingly run the structural method or one of its kin. The literary approach dominates Western practice largely because the structural system was, until recently, locked behind translation.

The poem tells you the weather. The schematic tells you which line is carrying the load.