Four Pillars · Visible stems

Heavenly Stems Across the Four Pillars

Compare the four visible Heavenly Stems by Day Master relationship, pillar position, rooting, season, and interactions without reducing them to labels.

Chinese
四柱中的天干
Pinyin
Sìzhù Zhōng de Tiāngān
Also known as
visible stems in Bazi · four pillar stems

Editorially reviewed:

Overview

The four Heavenly Stems are the visible upper characters of the Year, Month, Day, and Hour Pillars. The Day Stem is the Day Master; the other visible stems receive Ten God labels relative to it. Their position can scope interpretation, while season, roots in the branches, combinations, control, and support determine whether each relation is available and influential. A visible stem is not automatically dominant and a missing stem does not mean its phase is absent.

At a glance

Count
Four visible stem positions
Reference stem
Day Stem or Day Master
Relationship labels
Ten Gods
Support check
Roots and Resource or Peer support
Stem interactions
Generation, control, and Five Combinations
Limit
Visible does not automatically mean strong

Identify every stem relative to the Day Master

Record each stem’s exact character, polarity, Five Phase, pillar position, and Ten God relation. The Day Stem remains the reference and is not assigned a Ten God to itself in the same way.

Repeated stems preserve separate positions even when their character matches. Do not merge them into one count before checking roots and relations.

  • Keep character, polarity, and position together.
  • Calculate Ten Gods from one stable reference.

Trace each visible stem to supporting branches

A stem may root in the branch beneath it or elsewhere in the chart. Rooting can be direct, remote, seasonally strong, weak, combined, or disrupted depending on the adopted method.

A stem without an obvious root can still receive generation or appear in timing. “Unrooted” is a structural observation, not automatic disappearance.

  • Name the branch and hidden stem providing a root.
  • Keep rooting and favorability separate.

Read stem relations alongside branch conditions

Generation, control, and Five Combinations among visible stems describe potential connections. Transformation requires stricter season and support conditions than the mere presence of a pair.

Branch relations can strengthen, redirect, or obstruct what the stems appear to show. Both rows must remain in the same evidence map.

  • Do not assume every combination transforms.
  • Check the branches beneath participating stems.

Do not turn visible stems into fixed social roles

A visible Wealth, Officer, Resource, Output, or Peer relation does not prove income, occupation, education, behavior, or a specific person. It identifies a chart relationship.

Use pillar position and real context to frame a hypothesis, then preserve uncertainty and professional boundaries.

  • Separate symbolic role from real-world identity.
  • Avoid deterministic career or family claims.

Sources and editorial basis

  1. 《三命通會》 (Sanming Tonghui)
    卷二逐項比較年月日時天干的生剋、透出、合化與對日主作用,不能只按柱名閱讀A historical compilation covering stems and branches, Ten Gods, Nayin, Shen Sha, and multiple classical pattern systems.
  2. 《淵海子平》 (Yuanhai Ziping)
    「看命入式」要求遍看四柱干支及月令旺衰,天干跨柱作用須回到全局條件A foundational Ziping reference for branch months, hidden stems, roots, and stem-branch relationships.
  3. OpenFate Editorial Methodology
    跨柱天干關係必須列出參與符號、距離、季節、根氣、合化條件及其他干支反證OpenFate separates deterministic chart calculation, traditional interpretation, and modern editorial explanation.
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