How a reading is made

Every reading is built in two phases. First, the classical calculation — done entirely by code, with no guessing. Second, a careful written rendering that draws on a curated body of classical commentary.

Phase 1 — the calculation (done before any writing begins)

Before any written text is produced, the engine works out the full structure of your chart, drawn from the classical sources:

  • The four pillars of your birth — the year, month, day, and hour you arrived
  • The eight characters and the hidden influences within each one
  • The ten relationships at the centre of your chart — how the day you were born speaks to every other part of you
  • Your underlying temperament — whether your core runs supported or stretched, settled or restless
  • Every relationship between the branches — the pairings, tensions, and harmonies that shape how the parts of your chart answer one another
  • The combinations between the stems, and whether they transform the chart's balance
  • The pillars that sit empty, and whether they are hollow or quietly full
  • The tonal quality each pillar carries — a layer of meaning the classical tradition reads alongside the characters themselves
  • The ten-year chapters of your whole life
  • The next ten years, and where each year sits against the shape you were born with
  • The current twenty-year era (2024–2043) and how its quality meets your nature
  • What the season of your birth asks of the chart — the adjustment it tends to want
  • The overall pattern the engine reads from the month you were born — the shape that holds the rest together

All of this appears as a checkable list at the top of every detailed reading — every relationship the engine detected, laid out line by line for you to verify.

Phase 2 — the written reading (guided by classical commentary)

The engine then writes the reading in four passes, each drawing from a curated body of classical commentary:

  1. Observing your four pillars — a structural reading of the shape you were born with

  2. Five parts of your life — family, partnership, children, your working life, and what sustains you, each drawn from the structure into the texture of your actual days

  3. Your decades, and questions to sit with — the chapters of your life, plus the questions the reading leaves you with

  4. The whole picture — a flowing piece of writing that brings the structure together as one, anchored by a fresh image drawn from your particular chart

Every reading holds a thing and its opposite together. When it speaks of any stretch of time — a decade, a year, the current era — it shows both sides: the main current, and the counter-current within it. No period is simply good or bad for anyone. The classical sources name this the principle of the whole-and-its-opposite.

What this is not

  • Not financial advice. The reading never names specific funds, stocks, insurance products, or investment vehicles. Those belong to licensed advisors. This is cultural reading, kept clearly apart from any licensed surface.

  • Not prediction. Classical study does not promise to predict events. It describes tendencies of character and circumstance, and offers them to your own reflection.

  • Not absolute. A reading is a mirror, not a verdict. What you do with what you see remains yours.

We hold up a mirror — we don't tell you where to walk. The mirror shows you as you are; the path is yours to walk.

The calculation layer of this studio — the four pillars, the hidden influences, the branch relationships, true solar time, the schedule of your decades — is open source as the npm package `@finntang/bazi-mcp` (Apache-2.0). The package works out structure only. It does not include the temperament model, the reading of what your chart asks for, or any interpretation — those live only in the hosted reading. The difference is present versus absent, not a matter of tuning.