Classical Eight Mansions doctrine reads the S octant as one of Kua 1’s four favourable directions, specifically carrying the Yan Nian (延年) assignment — longevity, relationships, marriage harmony.
Configuration
- Mountain: 丁 (Dīng) — S octant, position 3 of 3, 187.5° – 202.5°
- Mountain type: stem · yin fire element, yin polarity
- Personal kua: Kua 1 (坎 Kan) — East Life Group, natural direction N
- Eight Mansions assignment: Yan Nian (延年) — favourable
- Eight Mansions domain: Longevity, relationships, marriage harmony
Dīng (丁) mountain context
Dīng (丁) is the third of three mountains in the S octant (degrees 187.5° to 202.5° on the compass). It is a heavenly-stem mountain, classified as yin fire (yin). Domain: Yin fire of afternoon, candle flame, refined illumination.
丁 is a non-branch mountain (a heavenly-stem mountain) and does not enter the 三合 trine groupings directly.
Kua 1 (Kan) context
Kua 1 (坎 Kan) people belong to the East Life Group (東四命), with natural direction N (the water-element trigram register). Kua 1 (Kan) people are East Life Group — born under the Kan trigram (water, north). Thrive in N / E / SE / S facing properties; should avoid W / NW / SW / NE.
Dīng mountain read for Kua 1 Kan
Classical Eight Mansions doctrine reads the S octant as one of Kua 1’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 丁 mountain (within the S octant), occupied by a Kua 1 Kan 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 S for Kua 1 is Yan Nian.
Refinement within the octant: Dīng sits at position 3 of 3 within the S octant. The S 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 1 person, a yin mountain like Dīng pairs differently with the kua's water 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.