Tiānyù jīng 天玉經
The Heavenly-Jade Classic (geomantic compass-orientation methodology) attributed to 楊筠松 (Yáng Yúnsōng / Yáng Jiùpín, late Tang); transmitted via Wú Jiànchéng 吳見誠 and Wú Jǐngluán 景鸞 (Sòng)
About the work
A 4-juan geomantic compass-orientation treatise (Inner Transmission in 3 juàn + Outer Edition in 1 juàn) attributed to Yáng Yúnsōng. The 提要 in the KR3g0022 source file notes that the work is not recorded in Zhèng Qiáo’s Tōngzhì Yìwén lüè nor Chén Zhènsūn’s Shūlù jiětí’s coverage of Yáng-and-Zēng family geomantic works — its first secure documentary appearance is via Wú Jiànchéng 吳見誠 (Sòng), who allegedly received the work from a “strange person” (yìrén 異人); his son Wú Jǐngluán 景鸞 then “expounded its meaning”. The 提要 thus implicitly questions the Tang-Yáng-Yúnsōng attribution but preserves it on traditional grounds.
The work develops the lǐqì (principle-and-pneuma) school’s compass-orientation methodology, complementary to the xíngshì (form-and-configuration) methodology of Yáng Yúnsōng’s KR3g0021 Hànlóng jīng trilogy. Where the xíngshì school analyzes mountain-and-water configurations directly, the lǐqì school assigns directional-correspondences (using the geomantic compass / luópán 羅盤) and computes auspicious-or-inauspicious orientations from numerological-cosmological principles.
The lǐqì school’s later development (Wú Gōngjiàozǐshū, Liú Bǐngzhōng’s Yùchǐ jīng, the monk Chèyíng’s Zhízhǐ yuánzhēn) is sometimes traced back to the Tiānyù jīng and the related Wú JiànchéngWú Jǐngluán transmission. Through this lineage, the Tiānyù jīng became one of the principal foundations of the late-Yuán / Míng lǐqì geomantic tradition.
For the related Yáng-attributed works, see KR3g0021 Hànlóng jīng, KR3g0022 Qīngnáng xù, KR3g0023 Qīngnáng àoyǔ. For Yáng Yúnsōng, see 楊筠松.
Tiyao
The 提要 for this work is preserved in the source file of KR3g0022. The substantive content is summarized above.