Anāhata nāda — unstruck sound
Heart-centre resonance
Anāhata nāda is the subtle, unstruck sound sought in nāda-anusandhāna. The heart-centre coordinate is a lineage-sensitive subtle-body projection, not a physical acoustic location.
Point 1 of 8 in Nāda Yoga — Sound-Body Resonance Map
Cross-tradition overlaps
- Anāhata nāda — unstruck sound ↔ Anāhata ādhāra (distance 0.010)
Sources
Haṭha Yoga Pradīpikā, chapter 4 (Nāda-anusandhāna) (primary_canonical)
Inner nāda is cultivated through listening and absorption.
Guy L. Beck, Sonic Theology: Hinduism and Sacred Sound (scholarly_modern)
Discusses anāhata as unstruck sacred sound in Hindu sonic traditions.