Suṣumṇā

Central channel (Meru-daṇḍa)

Central nāḍī running from the kanda (perineal region) to brahma-randhra at the crown. Sat-Chakra-Nirūpaṇa describes its inner structure as three nested tubes (suṣumṇā / vajra / citrinī); kuṇḍalinī rises through citrinī. The selectable point is placed at the heart-axis midpoint (anāhata level) to keep it spatially distinct from iḍā / piṅgalā; the diagram overlay renders the full path.

SuṣumṇāSuṣumṇāIḍāPiṅgalā

Point 1 of 3 in Three Principal Nāḍīs (suṣumṇā / iḍā / piṅgalā)

Cross-tradition overlaps

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Sources

Sat-Chakra-Nirūpaṇa v.1–2 (primary_canonical)

“The Nāḍī Suṣumṇā... extends from the middle of the Kanda to the Head.”

Woodroffe, The Serpent Power p.105–112 (secondary)

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