玄ZenTellATLAS OF WISDOM TRADITIONS

Liu Yao & divination / ENCYCLOPEDIA

Focus line

用神

A focus line is selected according to the question in Six Lines divination. This differs from a useful factor in BaZi and should be specified before interpretation.

Introductory article2 min readUpdated 2026-09-30AI-assisted · Editorially checked

At a glance

First step
Define the question before selection
Across systems
Different from BaZi useful factors

Definition and terminology

Documents commonly use Parents, resources Wealth, and one’s own situation may center Subject, depending on the manual. God here is a technical term, not invocation. Selection narrows interpretive focus. Mixing several questions makes the rationale ambiguous; a transparent method should not reclassify any convenient line as the target after seeing results.

Structure and rules

When several lines share the category, a method may select or compare them through position, movement and strength. An absent target may prompt concealed-line procedures. Supporting, opposing and further relational labels follow a rule chain, not fixed positions. Record selection first, then auxiliary relationships and date factors so each inference remains traceable.

Worked reading

For a filing-process exercise, declare Parents as focus and suppose the sole matching line is Chen earth. Fire producing earth then illustrates support, wood controlling earth opposition. Date and moving-line information are still absent. The example demonstrates a relationship table and cannot establish when an actual document will arrive.

Context and limits

Historical focus chapters reflect period-specific social roles; project and data examples are modern analogies. Selection introduces interpretive choices, so evaluation should pre-record question, target and rule rather than preserve only apparent successes. Explain how and why selection occurs without claiming the chosen symbolic line directly measures the real object.

References & further reading

Historical sources document ideas and rules of their time, not empirical proof of predictive accuracy. Source notes identify the nature and scope of each reference.

  1. 《增删卜易》Primary / tradition source

    Public-domain Six Lines text; page includes modern transcriber additions, so use the original numbered chapters for attribution.