BaZi Analysis: Day Master Strength & Useful God

After charting, first ask whether the Day Master is strong or weak. If this step is wrong, the Useful God and luck-cycle analysis will also be wrong. The method below uses the common Ziping tests of season, roots, and support; it is not the only formula.

Season, roots, and support

1. Season: Does the month branch support the Day Master? Jia or Yi Wood born in a Yin or Mao month is in season; born in a Shen or You month, it is out of season. This carries the most weight.
2. Roots: Do the branches contain a root of the same type, and has that root remained intact rather than being clashed or combined away? Wood sees roots in Yin and Mao; Hai or Zi generates Wood, and Wei stores Wood.
3. Support: Are there Seals that generate the Day Master or Friends/Rob Wealth that assist it, without severe control or draining?

Rule of thumb: meeting two of the three usually means a strong Day Master. Being in season but having neither roots nor support usually means weak. Being out of season but having both roots and support can still mean strong.

Some readers score the other seven characters as support versus control, draining, and consumption. This is only a rough screen; the month command and living roots still require judgment.

Strong does not mean “better,” and weak does not mean “worse.” One may need an outlet; the other may need support.

Example: Bing Fire in a Wu month, with Si-Wu-Wei branches and Ding exposed, is typically strong and favors Wealth, Officer, or Output. Xin Metal in a Hai month, with much Water and Wood but no Seal or Friend, is weak and favors Seal and Friend.

Balancing Useful God

For a strong Day Master: use Wealth to consume it, Officer/Killings to control it, or Output to drain it.
For a weak Day Master: use Seal to generate it or Friend/Rob Wealth to support it.

Also use the “illness and medicine” approach: the excessive or deficient element is the illness; the corrective element is the medicine. Major and annual luck tend to go more smoothly when favorable elements arrive, while unfavorable elements call for care.

Climate adjustment

If cold, heat, dryness, or dampness is extreme, adjust the climate separately. The climate-adjusting Useful God may differ from the balancing Useful God.

• Hai, Zi, and Chou months are cold: often use Bing or Ding Fire
• Si, Wu, and Wei months are dry and hot: often use Ren or Gui Water
• Spring and autumn usually need less emphasis unless clearly damp or dry

Mnemonic: Fire in winter, Water in summer, Earth for damp spring, Wood for dry autumn. In an extreme chart, the right climate correction can revive the whole structure.

Follow patterns

If the Day Master is extremely weak or extremely strong and no longer concerns balance, read it as a Follow pattern / Cong Ge (從格): no root or support, one force dominates, and there is no clear opposition. True Follow patterns are rare. A fake Follow pattern looks able to follow but still contains a trace of Seal or Friend; a luck cycle can expose that flaw and break the pattern. See Follow patterns.

For major and annual luck, see BaZi luck cycles. Apply the steps to your own chart with the free BaZi calculator.