Kaya-siddhi foundation
body preservation and perfected embodiment
Kaya-siddhi language describes perfected or transformed embodiment in Siddha sources. The pelvic-root anchor is a visual foundation for that doctrine, not a literal anatomical locus of muppu.
Point 4 of 4 in Siddha Muppu
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Tirumantiram (Thirumandiram), attributed to Tirumular (primary_canonical)
Documents Siddha yoga, bodily transformation and the relation of breath, bindu and bodily mastery in the relevant tantra sections; consult the specific Tamil edition for verse numbering.
K. N. Kuppuswamy, Siddha Medicine (scholarly_modern)
K. V. U. S. Sastri, History of Siddha Medicine (scholarly_modern)