M — bindu closure
Root / pelvic-floor resonance
M is the humming closure or bindu of AUM and is rendered here as descending to the pelvic floor. This root placement follows the requested map but is especially variant-sensitive; other schools locate bindu at the crown, palate, or nasal resonance.
Point 8 of 8 in Nāda Yoga — Sound-Body Resonance Map
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Yoga Sūtras 1.27–29 (primary_canonical)
Praṇava contemplation supplies the AUM frame; it does not prescribe this root placement.
Guy L. Beck, Sonic Theology: Hinduism and Sacred Sound (scholarly_modern)
Discusses bindu and variant sonic-body interpretations.