Bazi Combination & Harmony: A Complete Guide to Earthly Branch Combinations
In Bazi (Four Pillars of Destiny) analysis, understanding the relationships between the twelve earthly branches is essential for accurate chart interpretation. While much attention is given to the six clashes (六冲) — which create conflict and tension — the six combinations (六合) represent the opposite force: harmony, cooperation, and transformation.
When two specific earthly branches appear together in your Bazi chart, they can combine (合, hé) to form a new elemental force, effectively merging their energies and altering the chart's dynamics. This process is called combination harmony (合化), and it is one of the most powerful analytical tools in classical Bazi reading.
What Are Earthly Branch Combinations?
The twelve earthly branches (地支) each carry a specific yin-yang polarity, animal sign, and elemental nature. When certain pairs of branches appear together — either in adjacent pillars (year-month, month-day, day-hour) or across the same pillar's branch with a neighboring branch — they have the natural tendency to combine.
In combination, the two branches lose their individual identities and produce a new combined element. This transformed element then influences the chart as if it were present, often overriding or softening the original branches' effects.
The Six Combination Pairs (六合)
1. Zi-Chou Combination (子丑合): Water + Earth → Earth
Rat (子, water) and Ox (丑, earth) combine to produce strong earth. This is one of the most stabilizing combinations. It represents the merging of intelligence (water) with persistence (earth). In a chart, this combination often indicates a person who can turn ideas into practical results. The water element is consumed and transformed into earth — so if your chart relies on water as a useful god, this combination may weaken it.
2. Yin-Hai Combination (寅亥合): Wood + Water → Wood
Tiger (寅, wood) and Pig (亥, water) combine to produce strong wood. Water nourishes wood, making this a naturally supportive combination. People with this combination often have strong creative energy and growth potential. The water element (Pig) supports the wood (Tiger), so the wood element is strengthened considerably.
3. Mao-Xu Combination (卯戌合): Wood + Earth → Fire
Rabbit (卯, wood) and Dog (戌, earth) combine to produce fire. This is the most transformative combination — two seemingly incompatible elements (wood and earth) combine to create something entirely new. Fire represents warmth, passion, and transformation. In love and relationship readings, this combination often signals a powerful romantic connection between partners born under these signs.
4. Chen-You Combination (辰酉合): Earth + Metal → Metal
Dragon (辰, earth) and Rooster (酉, metal) combine to produce strong metal. Earth gives birth to metal naturally, making this a harmonious and productive combination. It often appears in charts of people with strong leadership abilities and organizational skills. The metal element becomes dominant when this combination is active.
5. Si-Shen Combination (巳申合): Fire + Metal → Water
Snake (巳, fire) and Monkey (申, metal) combine to produce water. Fire melts metal, and the resulting liquid represents water. This is another transformative combination — creating water where none existed before. In a chart lacking water, this combination can bring much-needed balance. However, if water is already an unfavorable element, this combination may introduce problems.
6. Wu-Wei Combination (午未合): Fire + Earth → Earth/Fire
Horse (午, fire) and Goat (未, earth) combine, and the resulting element depends on the season and other chart factors. In summer, they produce strong fire; in other seasons, they produce earth. This combination is less defined than the others and requires careful contextual analysis.
How Combinations Affect Your Chart
Transformation of Elements
The most significant effect of a combination is elemental transformation. When two branches combine, their original elements are temporarily overridden by the combined element. For example, if you have Rat (water) and Ox (earth) in your chart, both lose their original elemental identity and become earth. This can dramatically alter the five-element balance of your chart.
Neutralization of Clashes
A combination can resolve or prevent a clash between two other branches. For instance, if your chart has a Mao-You clash (Rabbit vs. Rooster), a Xu (Dog) branch arriving in the luck pillar can form Mao-Xu combination, which neutralizes the clash with You. This is called saving combination (解合).
Strengthening of Useful Gods
If the combined element matches your chart's useful god (用神), the combination is highly favorable. For example, if you need more wood and your chart has Yin-Hai combination (Tiger + Pig → strong wood), this is excellent news. The combination amplifies the element you need most.
Weakening of Detrimental Elements
Conversely, if the combined element is one your chart already has in excess (your jealousy god, 忌神), the combination can exacerbate existing imbalances. Understanding which combinations help or hinder your chart is a cornerstone of professional Bazi analysis.
Combinations in Luck Pillars and Annual Pillars
Earthly branch combinations are not limited to the four pillars of your birth chart. They can also form between:
- Luck pillars (大运) and your natal chart — combination formed by incoming luck energies
- Annual pillars (流年) and your natal chart — combination triggered by each passing year
- Between luck and annual pillars — the interaction of long-term luck cycles with current year energies
When analyzing annual forecasts, paying attention to which combination is activated in a given year is crucial. For example, 2026 is the Year of the Horse (丙午). Horse combines with Goat (Wu-Wei combination), so people born in Goat years will experience a harmony year in 2026. In 2027, the Year of the Goat (丁未), the Wu-Wei combination activates for Horse-born individuals — expect harmony and cooperation.
Combinations vs. Clashes: A Balanced View
A skilled Bazi practitioner never looks at combinations or clashes in isolation. A chart rich in combinations may indicate a harmonious personality but could also suggest someone who avoids necessary conflict. A chart with many clashes may indicate a turbulent life but could also show a person capable of overcoming great challenges.
The key insight is that combinations transform while clashes activate. Combinations merge and harmonize; clashes provoke and release. Both are necessary for a complete understanding of destiny.
Common Mistakes in Combination Analysis
- Assuming all combinations are good: A combination that strengthens your jealousy god (忌神) is harmful, not helpful.
- Ignoring the season: The strength of any combination is affected by the seasonal qi (seasonal energy) at the time of birth.
- Forgetting about hidden stems: Each earthly branch contains hidden heavenly stems (藏干) that may modify the combination's effect.
- Overriding without cause: Not all same-pillar combinations override the original branches — the combination's power depends on proximity and the strength of the involved elements.
Conclusion
Earthly branch combinations are one of the most elegant and powerful tools in Bazi analysis. They represent the principle of harmony in Chinese metaphysics — the idea that opposing forces can unite to create something greater than their parts. By understanding which combinations appear in your chart and how they transform your elemental balance, you gain deeper insight into your relationships, career potential, and life path.
For a complete Bazi reading that considers all combinations, clashes, and hidden interactions, consult a qualified practitioner or use our AI-powered Bazi analysis tool for instant insights into your unique chart.