What it is
Xuan Kong Da Gua (玄空大卦, "Mysterious Void Great Hexagram") is an advanced branch of Xuan Kong (Time-Space) Feng Shui refined during the Qing Dynasty (1644–1912) that names compass directions with the hexagrams of the I Ching. By identifying the hexagram of a building's sitting and facing directions, practitioners read the structure rather than its occupants — what the axis is doing with itself, and how each sector inside inherits that orientation.
Advanced hexagram-based spatial analysis.
How it works
Your home's compass bearing is placed on the 24 Mountains and reduced to that mountain's trigram. The sitting trigram stacked over the facing trigram gives the sitting hexagram; swapping them gives the facing hexagram, which is always its exact inverse. Because three mountains share each trigram, the pair resolves to eight orientations of 45°. Each sector of the home also receives a hexagram, built from that sector's trigram over the sitting trigram, and the reading itself is the Five Element relationship between the sitting and facing elements.
Key components
- 64 Hexagrams — The I Ching set that supplies the vocabulary. Each hexagram combines two trigrams (upper and lower) and carries specific energetic qualities; a building draws one of them as its sitting hexagram and its exact inverse as the facing.
- Mountain Ring — The 24 mountains of the Chinese compass, 15° each. Every mountain belongs to one of the eight trigrams — three mountains per trigram — and that trigram is what the hexagram pair is built from here.
- Sitting/Facing — Every building has a sitting direction (back/support) and facing direction (front/openness). Their hexagrams determine the fundamental energy character of the space.
- Trigram Compatibility — Upper and lower trigrams of sitting and facing hexagrams are compared for harmony. Compatible combinations (like same-element or productive-cycle pairs) indicate a favorable space.
- Sector Analysis — Each compass sector of the home carries its own hexagram energy. Important rooms (bedroom, office, kitchen) should ideally occupy sectors with favorable hexagram combinations.
- Elemental Relationships — Hexagram interactions follow the Five Element cycle. Production relationships are favorable; controlling relationships may create challenges depending on context.
Your reading
Once you have a KAXANTA account, this section fills with your actual Xuan Kong Da Gua values — computed once from your birth data and refreshed as transits shift. Until then, this is the shape of what you'll see.
Every number in your reading traces back to a classical calculation — no AI fabrication, no synthetic guesswork. If something looks wrong, it's almost always birth-data accuracy.
How KAXANTA reads this
KAXANTA calculates sitting and facing hexagrams from your home's compass direction, sector hexagrams for all 8 directions, and the Five Element relationship between the sitting and facing elements. The bearing is reduced to its mountain trigram, so the pair resolves to eight orientations of 45° — the finer classical subdivision and the 20-year Period are not part of this calculation. Requires house facing direction input in Settings. Results integrate with the broader Feng Shui analysis for a complete environmental picture.
I don't read Xuan Kong Da Gua in isolation — I weigh it against the other eight systems based on the question you're asking. Decisions, timing, psychology, and environment each have their own primary authority; Xuan Kong Da Gua contributes to the ones where its lineage is strongest.
Common questions
History & lineage
A branch of Xuan Kong (Time-Space) Feng Shui refined during the Qing Dynasty (1644-1912). Based on the 64 hexagrams of the I Ching.
KAXANTA presents Xuan Kong Da Gua faithfully, as its lineage presents itself. We don't sacralise it, we don't reduce it. If it consistently describes you better than generic advice would, use it. If not, lean on the other eight.
References & further reading
Canonical sources that informed this page. Wikipedia entries are starting points for cross-disciplinary context; books are practitioner-grade depth.
- I Ching: Book of ChangesWikipedia
- Hexagram (I Ching)Wikipedia
- Xuan Kong Da Gua: 64 Hexagrams Feng ShuiBook
- Feng shuiWikipedia