The lower character of every pillar is an Earthly Branch. A branch is not treated as one simple element: traditional calendars assign it one to three hidden heavenly stems (jijanggan, 지장간). They describe the layers of qi carried inside that branch.
Residual, middle, and main qi
Korean Manseryeok tables usually show hidden stems as residual qi, middle qi, then main qi. Main qi is the branch’s strongest representative, while the other layers preserve transitions from the surrounding seasonal cycle. Not every branch has all three.
The labels are structural, not percentages. A hidden stem should not be treated as a guaranteed event or a personality score.
Why the Ten Gods change by person
The same hidden stem can be Wealth in one chart and Resource in another. That is because its Ten God is calculated relative to the chart’s Day Master. The stem stays the same; the relationship changes with the reference point.
This is why our result shows the hidden character, its element, its qi phase, and its Ten God together. Removing any one of those columns loses context.
How to read the layer responsibly
Start with the visible Four Pillars, season, and Day Master strength. Then open the hidden-stem layer and ask which categories are reinforced beneath the surface. Finally, compare those stems with combinations, clashes, and luck cycles. Hidden stems add grammar to the chart; they do not replace the whole sentence.