Feng Shui learning centre
Kua and Annual Flying Stars both use directional language, but they are not the same chart and do not answer the same question. Sibyl keeps personal-year logic, annual palaces, and building assessment visibly separate.
01 · Personal Kua
Kua is calculated from Feng Shui year and birth sex. Sibyl uses Li Chun as the year boundary and handles the gender-specific substitution for Kua 5 explicitly. The approved Eight Mansions table is engine-owned and returns group, trigram, element, and all eight direction categories; presentation only explains and places them.
Calculate Kua02 · Annual grid
Annual Flying Stars place 1–9 across nine palaces. Sibyl's 3×3 view uses a north-up display convention and only places the engine-supplied direction → star values; it never recalculates the flight order.
03 · Year boundary
A birth in January or early February may still belong to the previous Feng Shui year. Sibyl compares the boundary against one absolute solar-term instant. The current source is a provisional calendrical adapter, so a precision-sensitive birth fails closed for higher-precision review instead of being guessed from a calendar date.
04 · Orientation
Northwest, North, and Northeast form the top row; West, Center, and East the middle; Southwest, South, and Southeast the bottom. This is Sibyl's north-up display convention 1.0.0, not a claim that every lineage must orient charts the same way.
System map
Both lanes use years and directions, but their inputs, outputs, and answerable questions are different.
Personal lane
This lane establishes the Feng Shui year before calculating Kua, then uses the approved Eight Mansions table for identity and eight direction categories. It still is not a complete property assessment.
The full date establishes whether the birth still belongs to the previous Feng Shui year.
The birth instant is compared with one global solar-term instant rather than only a Gregorian year.
The deterministic engine returns Feng Shui year and Kua, including the Kua 5 substitution rule.
Rule version 1.0.0 returns stable direction IDs, categories, and traditional polarity; this guide only explains returned facts.
Annual lane
This lane places a year's centre star and follows the existing Lo Shu flight order to form nine palaces. It is a time overlay, not a substitute for a property survey.
Annual pages retain the year, version, and provenance boundary needed for review.
The year's centre value comes from the existing deterministic rule or a reviewed fixed annual record.
The nine supplied values follow centre, northwest, west, northeast, south, north, southwest, east, and southeast.
Each palace can connect to a nine-star profile without generating renovation, health, or investment advice.
Shared vocabulary
These definitions explain how Sibyl uses each term without presenting a traditional interpretation as a scientific conclusion.
Scope ladder
The Kua tool returns Feng Shui year, Kua, group, trigram, element, and the eight categories from the approved Eight Mansions table.
Annual Flying Stars answer how nine star values occupy the palaces for one year.
Facing, construction period, floor plan, openings, and site conditions belong to a fuller building method that this product does not provide.
A personal Kua result is not a building Feng Shui audit. Annual Flying Stars also do not include house facing, construction period, doors, windows, or site conditions. The tools provide cultural and reflective information, not construction, health, investment, or safety advice.
Existing deterministic output comes from Feng Shui calculation engine 0.2.0 and Rule version 1.0.0. The fixed table and cases completed independent review; presentation does not recalculate the result or reconstruct the direction table. Li Chun timing currently uses a provisional calendrical adapter, so precision-sensitive boundaries fail closed for review.
North-up display 1.0.0 · calculation engine 0.2.0 · Rule version 1.0.0