Classical Eight Mansions doctrine reads the NW octant as one of Kua 2’s four favourable directions, specifically carrying the Yan Nian (延年) assignment — longevity, relationships, marriage harmony.
Configuration
- Mountain: 亥 (Hài) — NW octant, position 3 of 3, 322.5° – 337.5°
- Mountain type: branch · yin water element, yin polarity
- Personal kua: Kua 2 (坤 Kun) — West Life Group, natural direction SW
- Eight Mansions assignment: Yan Nian (延年) — favourable
- Eight Mansions domain: Longevity, relationships, marriage harmony
Hài (亥) mountain context
Hài (亥) is the third of three mountains in the NW octant (degrees 322.5° to 337.5° on the compass). It is a earthly-branch mountain, classified as yin water (yin). Domain: Pig-hour water, end of day, quiet repose, the year-end gathering register.
Classical 三合 (San He / Three Combining) doctrine pairs 亥 with 卯 + 未 as the trine grouping. Properties whose facing falls on 亥 can be read alongside the trinity branches for additional refinement during a full audit.
Kua 2 (Kun) context
Kua 2 (坤 Kun) people belong to the West Life Group (西四命), with natural direction SW (the earth-element trigram register). Kua 2 (Kun) people are West Life Group — born under the Kun trigram (earth, southwest). Thrive in SW / NW / W / NE facing properties; should avoid E / SE / S / N.
Hài mountain read for Kua 2 Kun
Classical Eight Mansions doctrine reads the NW octant as one of Kua 2’s four favourable directions, specifically carrying the Yan Nian (延年) assignment — longevity, relationships, marriage harmony.
What this means in practice: a property whose facing direction falls on 亥 mountain (within the NW octant), occupied by a Kua 2 Kun person, is read under classical Eight Mansions doctrine as carrying the Yan Nian register — longevity, relationships, marriage harmony. The favourable register is one of four favourable octants this kua has; the other three carry Sheng Qi (career), Tian Yi (health), Yan Nian (relationships), and Fu Wei (stability) assignments depending on the kua. The specific assignment for NW for Kua 2 is Yan Nian.
Refinement within the octant: Hài sits at position 3 of 3 within the NW octant. The NW octant has three mountains; classical doctrine applies the same Eight Mansions assignment to all three at the octant level, but specific-mountain refinements come from polarity matching (yin mountain vs yang mountain), san he trine groupings, and the mountain’s type (stem vs branch vs trigram). For a Kua 2 person, a yin mountain like Hài pairs differently with the kua's earth register than the octant's yang mountains do.
Why this is one input among four
The mountain-kua reading describes Eight Mansions doctrine’s baseline register only. The full audit also requires precise compass-degree facing measurement, the property’s Xuan Kong period chart, and integration across all occupants’ kuas. Master Sean Chan’s feng shui audit integrates all four layers on-site against your specific property.