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Heavenly Stem 08 of 10 · 天干

辛

Xin

xīn

Xin is the yin expression of the Metal phase. In a pillar it supplies phase and polarity; the Earthly Branch beside it supplies the animal and the twelve-position time coordinate.

Polarity
Yin
Phase partner
庚 Geng
An autumn mountain workshop among mineral cliffs, bronze vessels and maples
Autumn · WestThis landscape visualises the traditional seasonal and directional correspondences of Metal. Xin's yin position is supplied by the stem itself.

One sign, one fixed coordinate

What stays fixed for Xin

Wherever 辛 appears—year, month, day or hour—it remains Yin Metal. Its position in a chart changes; these identities and stem-to-stem partners do not.

Sequence position
8 of 10

After 庚 Geng; before 壬 Ren.

Five Combination · 五合
丙 Bing

The reciprocal partner five positions away in the stem sequence.

Fixed clash
乙 Yi

The opposing stem named by the fixed reference table.

Six meetings in sixty positions

Every Xin pillar in the cycle

The ten stems and twelve branches advance together. 辛 therefore meets six branches before the sixty-position sequence returns to its opening pair.

  1. Position 08辛未Example year 1991
  2. Position 18辛巳Example year 2001
  3. Position 28辛卯Example year 2011
  4. Position 38辛丑Example year 2021
  5. Position 48辛亥Example year 2031
  6. Position 58辛酉Example year 2041

Inside the Earthly Branches · 藏干

Where 辛 is carried as a hidden stem

Branches contain one to three interior stems in a fixed order. 辛 appears inside 3 branches; its primary, middle or residual role stays attached to each occurrence.

  1. 01

    丑

    Ox · Chou

    Earth branch

    residual

    The final stem in the branch’s interior order

  2. 02

    酉

    Rooster · You

    Metal branch

    primary

    The branch’s principal interior stem

  3. 03

    戌

    Dog · Xu

    Earth branch

    middle

    The second stem in the branch’s interior order

Open the complete hidden-stem map

When 辛 is the Day Master · 日主

How Xin names all ten stem relationships

As the day stem, 辛 becomes the comparison point. The target stem's phase selects one of five relationship pairs, then its polarity selects the named member of that pair.

  1. 01甲JiaYang WoodDay Master controls it · different polarity正财Direct Wealthzhèng cái
  2. 02乙YiYin WoodDay Master controls it · same polarity偏财Indirect Wealthpiān cái
  3. 03丙BingYang FireIt controls the Day Master · different polarity正官Direct Officerzhèng guān
  4. 04丁DingYin FireIt controls the Day Master · same polarity七杀Seven Killingsqī shā
  5. 05戊WuYang EarthIt generates the Day Master · different polarity正印Direct Resourcezhèng yìn
  6. 06己JiYin EarthIt generates the Day Master · same polarity偏印Indirect Resourcepiān yìn
  7. 07庚GengYang MetalSame phase · different polarity劫财Rob Wealthjié cái
  8. 08辛XinYin MetalSame phase · same polarity比肩Friendbǐ jiān
  9. 09壬RenYang WaterDay Master generates it · different polarity伤官Hurting Officershāng guān
  10. 10癸GuiYin WaterDay Master generates it · same polarity食神Eating Godshí shén
Read the complete Ten Gods rule