The Description of the Four Durgā Mantras
निरोधिकायामर्द्धेंदुनादे नादांतयोः पुनः । उन्नतांसेषु वक्त्रे च ध्रुवमण्डलके शिवे ॥ १२२ ॥
nirodhikāyāmarddheṃdunāde nādāṃtayoḥ punaḥ | unnatāṃseṣu vaktre ca dhruvamaṇḍalake śive || 122 ||
ក្នុង និរោធិកា (ផ្លូវខាងក្នុងសម្រាប់ទប់ស្កាត់) ក្នុងសំឡេងដូចព្រះចន្ទកន្លះ ហើយម្ដងទៀតនៅចុងនៃ នាដៈ; នៅស្មាឡើងខ្ពស់ ក្នុងមាត់ និងក្នុងវង់ដ៏ថេរ និងមង្គល (ធ្រុវមណ្ឌល) — នៅទីនោះគួរតាំងចិត្តស្មារតី។
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It maps specific inner loci where attention is to be stabilized so that nāda (subtle sound) becomes a support for nirodha (restraint), leading the mind toward steadiness and liberation-oriented absorption.
While primarily yogic/technical, it supports bhakti indirectly by training one-pointedness; a steadied mind can hold divine remembrance without distraction, making devotion continuous and deeper.
This belongs to the technical-yogic instruction stream associated with Vedāṅga-style disciplines (especially Śikṣā and subtle phonetics of sound), using nāda as a practical method of concentration.