BAZI KNOWLEDGE BASE
Day Masters in compatibility: two-way Ten Gods and stem combinations
The Day Master is the stem of the birth day. Comparing two Day Masters begins with their phases and polarities, then derives Ten Gods from each viewpoint. Jia Wood generates Ding Fire: Ding is Hurting Officer to Jia, while Jia is Direct Resource to Ding. Reversing the reference changes the role, so “one generates the other” is not a complete relationship reading.
How does Jia see each stem, and what is the reverse role?
With Jia as reference, Wood gives Companions, generated Fire gives Output, controlled Earth gives Wealth, controlling Metal gives Officers, and generating Water gives Resource. Polarity determines the individual role. The final column starts again from the other stem; it does not copy the middle column.
| Other stem | Role to Jia | Jia’s reverse role |
|---|---|---|
| Jia | Peer | Peer |
| Yi | Rival | Rival |
| Bing | Eating God | Indirect Resource |
| Ding | Hurting Officer | Direct Resource |
| Wu | Indirect Wealth | Seven Killings |
| Ji | Direct Wealth | Direct Officer |
| Geng | Seven Killings | Indirect Wealth |
| Xin | Direct Officer | Direct Wealth |
| Ren | Indirect Resource | Eating God |
| Gui | Direct Resource | Hurting Officer |
Does generation mean care, and control mean conflict?
Generation and control first identify phase direction. Jia generating Ding becomes an Output/Resource relation between viewpoints; Jia controlling Ji becomes a Wealth/Officer (the role family that controls the birth-day element, often interpreted through rules and demands) relation. These names locate a calculation. They do not observe who gives more or acts more forcefully.
Traditional phase theory uses both generation and restraint. Unchecked growth is not automatically appropriate, and additional support can be excessive. Season, roots and structure still belong to each chart; “generation good, control bad” is not a general matching formula.
Which Day Stems form the five combinations?
The five pairs are fixed as follows. This establishes a named pair, not cross-chart transformation or the movement of a stem into another person’s natal chart (the chart calculated for the birth moment).
| Stem pair | Phases |
|---|---|
| Jia–Ji | Wood–Earth |
| Yi–Geng | Wood–Metal |
| Bing–Xin | Fire–Metal |
| Ding–Ren | Fire–Water |
| Wu–Gui | Earth–Water |
Why does a pair still need both natal contexts?
Even within a single chart, Ziping Zhenquan distinguishes the Day Master’s own combination, another stem’s combination, separation and competition. Two people’s stems do not even share one Month Command (the seasonal conditions represented by the birth month). This guide therefore records pairs; a further claim of cross-chart transformation needs a separately explained rule and evidence.
A Jia and Ji Day-Master pair may combine while Jia already has Ji in the natal chart, or Ji already has Jia. Existing natal relationships and the new comparison need separate descriptions, rather than one number for a supposedly powerful match.
If the other Day Master matches a spouse star, is that destiny?
For Jia and Ji, Ji matches Jia’s Direct Wealth under a traditional male-chart wife convention; Jia matches Ji’s Direct Officer under a traditional female-chart husband convention. These are roles from two reference points. They do not establish either person’s identity, orientation or relationship form.
A natal spouse star is a stem role within your chart; the other Day Master belongs to another chart. A matching label neither turns that person into your star nor guarantees your expectations. If a traditional role table does not fit the participants’ lives, acknowledge the limitation instead of changing rules until a destined-partner label appears.