Mahāviṣṇu-Mantras: Aṣṭākṣarī, Sudarśana-Astra, Nyāsa Systems, Āvaraṇa-Pūjā, and Prayogas
अस्रं रक्षद्वयं सर्वे हुमंताः समुदीरिताः । मस्तके नेत्रयोः कंठहृदये नाभिदेशके ॥ ९९ ॥
asraṃ rakṣadvayaṃ sarve humaṃtāḥ samudīritāḥ | mastake netrayoḥ kaṃṭhahṛdaye nābhideśake || 99 ||
Toutes les formules protectrices « astra » —avec la double protection— doivent être récitées avec l’exclamation « hum » ; puis appliquées (en nyāsa protecteur) sur la tête, les yeux, la gorge, le cœur et la région du nombril.
Narada (teaching within a technical/ritual instruction context, traditionally in dialogue line with Sanatkumara tradition)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: vira
It teaches mantra-based protection through nyāsa: sacred sound is consciously placed on key bodily centers to guard the practitioner and stabilize the rite.
Though technical, it supports devotion by safeguarding worship: the devotee uses mantra-protection so the mind and senses remain steady for focused remembrance and worship.
Ritual procedure (prayoga) and mantra-application (nyāsa/anga-nyāsa) are highlighted—how to utter bija-like exclamations such as “hum” and place protection on specific body points.