🏛️ The Essence of 'Passing Road' Yin-Yang
Jin Suo Yu Guan (金鎖玉關) , historically known as Guo Lu Yin Yang (過路陰陽), is a prestigious San Yuan school focused on the binary interplay of Sha (砂 - Sand/High ground) and Shui (水 - Water/Low ground) . Its name implies that its secrets are as secure as a "Golden Lock" and as precious as a "Jade Gate."
Unlike schools that rely solely on time-cycles, Jin Suo Yu Guan prioritizes the Spatial Form . It teaches that certain Trigrams (directions) are inherently Yin and require Yang (High ground) to balance, while others are Yang and require Yin (Low ground/Water) to stabilize.