Narada Purana — Purva Bhaga, Shloka 109
The Description of the Four Durgā Mantras
रत्याद्या मृलहृदयभ्रुमध्येषु विचक्षणः । वाक्शक्तिलक्ष्मीबीजाद्या मातंग्यंताः प्रविन्यसेत् ॥ १०९ ॥
ratyādyā mṛlahṛdayabhrumadhyeṣu vicakṣaṇaḥ | vākśaktilakṣmībījādyā mātaṃgyaṃtāḥ pravinyaset || 109 ||
អ្នកអនុវត្តដែលមានវិចារណញ្ញា គួរដាក់មន្ត្រា ចាប់ពី «រត្យា» ឲ្យបានត្រឹមត្រូវ នៅមូល (mūla), នៅបេះដូង, និងចន្លោះចិញ្ចើម; ហើយដាក់ផងដែរ មន្ត្រាដែលចាប់ពីព្យាង្គគ្រាប់ពូជ នៃ វាក-សក្តិ និងលក្ខ្មី បន្តរហូតដល់ «មាតង្គី»។
Narada (teaching in a technical/ritual context within Vedanga-style instructions)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
FAQs
It teaches nyāsa—installing mantra-energies in key inner centers (root, heart, brow)—so the sādhaka’s body becomes a fit vessel for mantra-siddhi and focused worship.
Though technical, it supports devotion by prescribing disciplined inner placement of divine names/seed-mantras, making worship more concentrated and reverent rather than merely external.
A practical ritual-technology: mantra-nyāsa (a procedural discipline aligned with śikṣā/mantra-prayoga traditions), specifying where and in what sequence mantras are to be installed.