Classical Eight Mansions doctrine reads the S octant as one of Kua 7’s four unfavourable directions, specifically carrying the Wu Gui (五鬼) assignment — five ghosts: arguments, disputes, betrayal, fire risk.
Configuration
- Mountain: 丙 (Bǐng) — S octant, position 1 of 3, 157.5° – 172.5°
- Mountain type: stem · yang fire element, yang polarity
- Personal kua: Kua 7 (兌 Dui) — West Life Group, natural direction W
- Eight Mansions assignment: Wu Gui (五鬼) — unfavourable
- Eight Mansions domain: Five Ghosts: arguments, disputes, betrayal, fire risk
Bǐng (丙) mountain context
Bǐng (丙) is the first of three mountains in the S octant (degrees 157.5° to 172.5° on the compass). It is a heavenly-stem mountain, classified as yang fire (yang). Domain: Yang fire of midday, sun, public radiance, peak visibility.
丙 is a non-branch mountain (a heavenly-stem mountain) and does not enter the 三合 trine groupings directly.
Kua 7 (Dui) context
Kua 7 (兌 Dui) people belong to the West Life Group (西四命), with natural direction W (the metal-element trigram register). Kua 7 (Dui) people are West Life Group — born under the Dui trigram (metal, west). Thrive in W / NW / SW / NE facing properties; should avoid SE / S / E / N.
Bǐng mountain read for Kua 7 Dui
Classical Eight Mansions doctrine reads the S octant as one of Kua 7’s four unfavourable directions, specifically carrying the Wu Gui (五鬼) assignment — five ghosts: arguments, disputes, betrayal, fire risk.
What this means in practice: a property whose facing direction falls on 丙 mountain (within the S octant), occupied by a Kua 7 Dui person, is read under classical Eight Mansions doctrine as carrying the Wu Gui register — five ghosts: arguments, disputes, betrayal, fire risk. The cautious register is one of four unfavourable octants this kua has; the other three carry Huo Hai (mishaps), Wu Gui (5 ghosts), Liu Sha (6 killings), and Jue Ming (total loss) assignments depending on the kua. The specific assignment for S for Kua 7 is Wu Gui.
Refinement within the octant: Bǐng sits at position 1 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 7 person, a yang mountain like Bǐng pairs differently with the kua's metal register than the octant's yin 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.