The Geometry of the Geomancer's Compass
A genuine Luo Pan contains dozens of concentric rings encoding astronomical cycles, lunar mansions, and terrestrial mountain sectors. At its core is the Heaven Pool (Tian Chi)—a magnetic needle floating in silence to measure earth's local electromagnetic field.
How to Measure Without Magnetic Distortion
Modern homes are riddled with rebar, electrical panels, and metal doorframes that distort compass needles by several degrees. Step three paces back from large iron structures, stand at the property's central point, and cross-reference with digital satellite orientation maps.
The Peril of the Great Empty Line (Da Kong Wang)
When a house sits directly on the boundary separating two trigrams (e.g., exactly between North/Kan and Northeast/Gen at 22.5 degrees), the building belongs to neither world. Incoming energy suffers phase cancellation, leaving occupants feeling perpetually unanchored.
Correcting an Afflicted House Alignment
If a house is oriented on an Empty Line, masters traditionally 'adjust the portal' (Kai Men Gai Xiang)—angling the primary door frame by 3 to 5 degrees to lock into an auspicious, pure 24-mountain sector, restoring clean energetic transmission.