Jiazi reference · #24 of 60
Yin Fire Pig (丁亥) in BaZi
Yin Fire Pig is Jiazi pillar #24: Yin Fire over the Pig branch, a deterministic stem-branch combination used in BaZi year, month, day, and hour pillars.
Yin Fire Pig (丁亥) is number 24 in the 60 Jiazi cycle. It combines the Yin Fire heavenly stem 丁 with the Pig earthly branch 亥. Read it as a pillar ingredient, not as a complete chart verdict.
Deterministic record
What the pair contains
These fields identify a fixed cycle row. They do not change between charts; only the pair's position and relationships change its interpretive role.
| Cycle number | 24 / 60 |
| Heavenly stem | 丁 · Ding · Yin Fire |
| Earthly branch | 亥 · Hai · Pig |
| Branch element | Water |
| Branch season | early winter |
| Hidden stems | 壬 · Ren · Yang Water; 甲 · Jia · Yang Wood |
| Element relation | Water controls Fire |
Five Element structure
Water controls Fire
The branch's water element controls the visible fire stem in the Five Element cycle. This is a raw Five Element relation, not a favorable-or-unfavorable score.
01 · Definition
What this pillar records
Yin Fire Pig is a stem-branch pair, not a standalone personality type. The heavenly stem shows the visible qi on top; the earthly branch shows the seasonal container underneath. The hidden stems inside the branch explain why a pillar can carry more than one layer of meaning.
The Pig branch belongs to early winter and carries hidden stems 壬, 甲. In a real reading, Pillarwise weighs this pillar against the day master, season, Ten Gods, roots, combinations, and clashes before drawing any life-area meaning.
At the raw Five Element level, this pair records water controls fire. That relationship is one input to the chart calculation; it does not decide whether the pillar is useful, difficult, strong, or weak on its own.
In practice, the same Jiazi pillar reads differently when it appears as a year pillar, month pillar, day pillar, or hour pillar. Pillarwise keeps this page as a deterministic reference, then lets the chart context establish its function.
02 · Position first
The same pair, four different jobs
Places 丁亥 in the chart's broad inherited and social frame. It is not a complete ancestry or childhood verdict.
Places the pair in the seasonal and structural frame. The branch's season matters here, but Pattern still requires the complete month-order method.
The stem is the Day Master when 丁亥 is the day pillar; the branch is its seat. This is not the same job as the same pair in another pillar.
Places the pair in the hour layer after local time rules are resolved. It cannot be trusted if the hour boundary was calculated incorrectly.
03 · Work the sequence
Suppose 丁亥 appears in a day pillar
First record 丁 as the Day Master and 亥 as its branch seat. Then expand the branch's hidden stems (壬, 甲), compare every stem to 丁 to derive Ten Gods, and test roots and branch relations across the other three pillars. Only that full procedure can support a contextual reading; the label “Yin Fire Pig” alone cannot.
04 · Interpretation boundary
What 丁亥 cannot prove
This pair cannot independently prove a personality, career, relationship outcome, wealth level, health condition, rank, danger, or dated event. Do not transfer an interpretation from a day pillar to a year, month, hour, luck, or annual pillar without recalculating its role.
Questions
Frequently asked
丁亥 is number 24 of the 60 stem-branch combinations.
Its heavenly stem is 丁 (Ding), Yin Fire.
Its earthly branch is 亥 (Hai), commonly associated with the Pig.
The 亥 branch carries 壬 · Ren · Yang Water; 甲 · Jia · Yang Wood. Hidden stems are branch contents used in full-chart calculation; they do not turn this pillar into a standalone verdict.