Traditional scholarly six-line chart with one target line highlighted

Act 4

The Target-Line System

Last updated 5/17/2026

Act 3 tells you how strong each line is against the calendar. Act 4 tells you which line matters.

That decision comes first. A perfect strength judgment on the wrong line is still a wrong reading. The question chooses the target; the chart then tells us what is helping, harming, hiding, or replacing that target.

Treat this act as intake discipline. Before judging a moving line, a strong line, or a dramatic clash, name what the question is actually asking about and which line is allowed to carry that subject.

Target Which line is the question?

Father, money, promotion, illness, opponent, travel, document, spouse, child, exam: each subject points to a line.

Support What feeds the target?

Once the target is fixed, the supporting line family becomes legible instead of abstract.

Obstacle What controls the target?

The reading starts to become a story of support, pressure, blockage, and release.

What this act teaches

The working idea is simple: the question determines the target line.

The same cast can answer different questions. A promotion question does not look at the same line as a loan question. A father’s illness does not use the same target as self-illness. A question about an unfamiliar opponent may use a structural line rather than a Six Relative label.

This act teaches the selection workflow:

  • Read the question before reading chart activity.
  • Map the question’s subject to a target type.
  • Find the matching line or lines in the primary chart.
  • Resolve multiple candidates without guessing.
  • Retrieve the target when it is absent from the visible chart.
  • Keep rare transformed-line cases separate from ordinary selection.

Working labels in this act

The source terms are useful, but the learner-facing job is clearer in plain language: target, support, obstacle, blocker, double appearance, hidden target.

Yong Shen Target line

The line that represents the subject of the question. Everything later is judged in relation to it.

Yuan Shen Support line

The line family that generates and supports the target.

Ji Shen Obstacle line

The line family that controls, attacks, or obstructs the target.

Chou Shen Support blocker

The line family that controls the support before it can reach the target.

Multiple candidates Double Appearance

Two or more visible lines match the target type. The selection cascade decides which one carries the question.

Absent candidate Hidden Spirit

The target type is missing from the visible chart, so it is retrieved through the palace structure.

What we are holding for later

  • Full strength comparison belongs to Act 5 and Act 7. Here we identify the target, support, and obstacle.
  • Advanced transformed-line mechanics belong to Act 6. Here we only mark the rare cases where a transformed line can carry the subject.
  • Timing belongs to Act 8. A hidden or blocked target can emerge on a date, but this act only retrieves it.
  • Domain-specific routing belongs to Act 9. Marriage, health, travel, law, documents, and broad-life questions need careful subject selection.
  • Method comparison and rejected shortcuts belong to Act 10. Here we keep the working rules clean.

Where this lands us

After Act 4, the chart finally has a center of gravity. You can point to the target line and name its support, obstacle, and blocker.

Only then does strength comparison make sense. Act 5 asks how the target, support, obstacle, calendar, and moving lines interact.

Checkpoint

By the end of Act 4, you can restate the question, choose the line that carries the answer, identify support and obstruction, and avoid being distracted by dramatic lines that are not actually connected to the question.

The modules