Narada Purana — Purva Bhaga, Shloka 74
Mahāviṣṇu-Mantras: Aṣṭākṣarī, Sudarśana-Astra, Nyāsa Systems, Āvaraṇa-Pūjā, and Prayogas
प्रजापतिर्मुनिश्चास्य गायत्री छन्द ईरितः । देवता वासुदेवस्तु बीजं शक्तिर्ध्रुवश्च हृत् ॥ ७४ ॥
prajāpatirmuniścāsya gāyatrī chanda īritaḥ | devatā vāsudevastu bījaṃ śaktirdhruvaśca hṛt || 74 ||
このマントラにおいて、プラジャーパティがリシ（ṛṣi）、ガーヤトリーが韻律（chandas）、ヴァースデーヴァが主宰神（devatā）と宣言される。さらにビージャ（bīja）とシャクティ（śakti）が説かれ、ドゥルヴァ（Dhruva）を心（hṛd）に据えて支えの鍵とする。
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It defines the mantra’s formal identity—seer, metre, deity, and internal energizers—so the practitioner invokes Vāsudeva with correct Vedic method and focused devotion.
By naming Vāsudeva as the devatā and directing the practice inward (hṛd), it frames mantra-japa as heart-centered Viṣṇu-bhakti rather than mere recitation.
Mantra-lakṣaṇa used in ritual application—identifying ṛṣi, chandas, and devatā, along with bīja/śakti and heart-nyāsa—core procedural knowledge aligned with Vedāṅga-oriented practice.