BAZI KNOWLEDGE BASE
Several Useful Gods: priority, Favorable Gods and support
Priority among Useful Gods depends on what each candidate does, not a permanent ranking of Wood, Fire, Earth, Metal and Water. In common modern functional usage, Useful God (the element or role assigned a key function by a particular interpretation method) addresses the principal need and Favorable God (an element or role judged helpful under the chosen interpretation) assists or protects it. The need, its support and what is currently available are distinct. First priority does not mean unlimited benefit from more of an element.
Useful and Favorable: a need and its assistance
Suppose Jia’s Xin Officer (the role family that controls the birth-day element, often interpreted through rules and demands) needs protection and Ding Hurting Officer (a traditional role associated with independent expression and questioning rules) is the identified interference. Gui restraining Ding is a candidate route. In the modern vocabulary used here, Gui can be the principal need; a relationship supporting Gui without undermining the objective may be an assisting Favorable God.
Ziping Zhenquan may call the monthly Xin Officer “use” and the protecting role its assistant. This explanation of functional priority does not replace that definition. Generating the Useful God alone also does not settle a candidate’s other effects.
Xin can generate Gui, but not all Metal is interchangeable
Xin Metal generates Gui Water, while Gui Water restrains Ding Fire: this describes a possible cooperative route. Replacing that support with Geng still gives Metal generating Water, but Geng is Seven Killings (a traditional role associated with challenge, pressure and decisive action) for Jia. It also controls Jia and introduces Officer–Killings coexistence beside Xin.
Assistance therefore requires more than finding the element that generates the Useful God. The actual stem, position, roots and newly introduced relationships matter. A supporting role can be essential to the principal function; second in a list does not mean dispensable.
The most needed function may not yet be available
If Gui is only a theoretical need and absent from the natal chart (the chart calculated for the birth moment), it is not already available assistance. If present but bound with Wu, its other support and contacts need examination. Separate the principal need, currently available routes and what remains unresolved.
An available alternative need not work for the same reason. Earth receiving from Ding Fire and generating Metal differs from Water directly restraining Ding; Earth can also restrain Water. Alternatives cannot be combined unconditionally, and candidates need not produce one forced winner.
Keep natal priority alongside period-specific participation
A cycle or year may introduce Gui, add a Water root or introduce Wu and change Gui’s connections. The same need then has different participation conditions. Identify the cycle or year without rewriting the recorded natal symbols.
If the priority shifts from protecting Xin to a different problem, explain why the question changed. Simply changing the answer from Water to Fire leaves the reader unable to understand the transition.
Turn the list into an explanation
Instead of “Water first, Metal second,” an explanation could say: “The current task is Water restraining Hurting Officer to protect Officer; Metal assistance depends on the particular Geng or Xin and other relationships.” This partial example explains priority without judging anyone’s complete chart.
Ask what each candidate does, whom it assists and what else it affects. Those answers make the list informative. It still does not rank colors, careers or life decisions.