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Gichuk day pillar (己丑) — Thunderbolt Fire, Void and Ten God

Day pillars · · Mutal Unnie editorial team

At a glance

A day pillar is the stem and branch of the birth day, rather than the birth-year animal. Gichuk is combination 26 of the sixty-pillar cycle. The engine reports a Yin Earth Day Master, Gi, above branch Chuk (Earth). Nayin: Thunderbolt Fire · Void: O·Mi · Ten God: Companion · Twelve Sinsal: Hwagaesal (Canopy Star)

Gichuk — cultivated fields
In this guide
  1. What forms the Gichuk day pillar?
  2. What does Thunderbolt Fire mean, and how does its paired pillar differ?
  3. Why is the main hidden stem classified as Companion?
  4. When do the next Gichuk days occur?
  5. What does the Void pair O·Mi mean?
  6. Why is this branch in the Hwagaesal (Canopy Star) position?
  7. Can Gichuk alone determine personality, compatibility or work?
  8. Frequently asked questions

What forms the Gichuk day pillar?

A day pillar is the stem and branch of the birth day, rather than the birth-year animal. Gichuk is combination 26 of the sixty-pillar cycle. The engine reports a Yin Earth Day Master, Gi, above branch Chuk (Earth).

The illustration uses cultivated fields for Gi. Consider a routine you can maintain without becoming the caretaker of everything.

The branch Chuk is Earth; its hidden stems are Gye · Sin · Gi, ending with the main stem Gi. The branch animal is Ox. This animal describes the day branch here, not automatically the person's birth-year sign.

FieldEngine result and convention
Day MasterGi (己) · Yin Earth
Day branchChuk (丑) · Earth · Ox
NayinThunderbolt Fire (霹靂火)
Hidden stems / mainGye · Sin · Gi / Gi
Ten GodCompanion
VoidO·Mi
Twelve SinsalHwagaesal (Canopy Star)

What does Thunderbolt Fire mean, and how does its paired pillar differ?

Thunderbolt Fire (霹靂火) is the traditional Nayin name shared with Muja. A Nayin image is a cultural metaphor, not an element count, a useful-element prescription or proof of a personality trait. Its element can differ from the Day Master's element without being an error.

The pair makes the distinction concrete: Gichuk has main hidden stem Gi and Companion, while Muja has Gye and Direct Wealth. Their branch positions are Hwagaesal (Canopy Star) and Jangseongsal (General Star). Sharing the name Thunderbolt Fire therefore does not give the two combinations the same structure or life story.

ComparisonThis pillarNayin pair
Day pillarGichukMuja
PolarityYinYang
Main hidden stemGiGye
Ten GodCompanionDirect Wealth
VoidO·MiO·Mi
Twelve SinsalHwagaesal (Canopy Star)Jangseongsal (General Star)

Why is the main hidden stem classified as Companion?

For Gichuk, the engine compares Day Master Gi with main hidden stem Gi, producing Companion. The surface elements are Earth and Earth; the Ten God calculation uses the hidden stem's element and polarity, not just the branch's surface label.

Same element and same polarity: the Companion category can prompt a conversation about autonomy and shared roles.

This is the representative classification by the main hidden stem. Other hidden stems remain part of the chart; the month, hour and surrounding pillars can change the interpretation's emphasis.

A second comparison keeps the Day Master fixed: Gisa also begins with Gi, but its main hidden stem is Byeong, its Ten God Direct Resource, and its Nayin Wood of the Great Forest. In this comparison the lower character, not the upper one, changes the result. Compare the actual fields before borrowing an interpretation from another pillar with the same stem.

When do the next Gichuk days occur?

Starting from 26 October 2026, these are the next three calendar days whose engine dayGZ() equals Gichuk. They repeat at 60-day intervals. A matching day is not a promise of a successful exam, contract or relationship, and does not require moving a real appointment.

Calendar date (as of 2026-10-26)Day pillar
2026-11-11 · WedGichuk (己丑)
2027-01-10 · SunGichuk (己丑)
2027-03-11 · ThuGichuk (己丑)

A recurring day is a shared calendar label, not a private appointment with fortune. You can put it beside a journal entry and compare what actually happened, including observations that do not fit the interpretation. After the three dates listed here pass, check the calculator again for the next cycle; the article's reference date does not move automatically.

What does the Void pair O·Mi mean?

The engine's sixty-cycle table gives O·Mi for Gichuk. Gongmang, often called Void, identifies two unused branches in its ten-day group. A two-pillar Nayin pair and a ten-day group are different classifications.

Seeing either branch elsewhere in a chart does not erase a person, relationship or opportunity. Treat this as an auxiliary traditional idea, not a reason to cancel plans or spend money. Real circumstances take priority.

Why is this branch in the Hwagaesal (Canopy Star) position?

Here the reference is the day branch Chuk's own Three Harmony group, and the target is Chuk again. That produces Hwagaesal (Canopy Star). It is not a calculation from the birth-year branch and does not list every star in a full chart.

A storage branch is linked with concentration and consolidation. It does not diagnose loneliness; choose a balance between focus and contact that suits your life.

Can Gichuk alone determine personality, compatibility or work?

Gichuk is one pillar of a complete saju chart. A different birth month, hour, other pillars and long-term periods can change the context. These two characters cannot fix personality, marriage prospects or career, and MBTI uses a different basis rather than an interchangeable code.

Use interpretations as questions to compare with experience. They do not guarantee outcomes or support medical, legal or investment decisions. The linked concept guides explain the terms before any personal interpretation.

First confirm that a birth date is Gregorian or convert a known lunar date using the correct country's calendar. For a day pillar, year alone is insufficient. Time near the late-night day boundary also requires a stated convention. The web calculator offers optional corrections; use the same options when comparing two results rather than assuming different displays prove an error.

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Frequently asked questions

What is the Gichuk day pillar?

It is 己丑, combination 26 of sixty. Its Nayin is Thunderbolt Fire; its Void branches are O·Mi.

What is Gichuk's day-branch Ten God?

Using main hidden stem Gi within Gye · Sin · Gi, the engine computes Companion relative to Gi. This is the main-stem classification.

When is the next Gichuk day?

As of 2026-10-26: 2026-11-11, 2027-01-10, 2027-03-11. These calendar days recur every 60 days and do not guarantee a good outcome.

Is Hwagaesal (Canopy Star) the only star in a Gichuk chart?

No. Hwagaesal (Canopy Star) here describes the day branch's position within its own Three Harmony group. A full chart and another reference branch can give other classifications.