Mahāviṣṇu-Mantras: Aṣṭākṣarī, Sudarśana-Astra, Nyāsa Systems, Āvaraṇa-Pūjā, and Prayogas
द्वादशाक्षरवर्णाद्या द्वादशादित्यसंयुताः । अष्टार्णोऽयं मनुश्चाष्टप्रकृत्यात्मा समीरितः ॥ २१ ॥
dvādaśākṣaravarṇādyā dvādaśādityasaṃyutāḥ | aṣṭārṇo'yaṃ manuścāṣṭaprakṛtyātmā samīritaḥ || 21 ||
ദ്വാദശാക്ഷര മന്ത്രവർണങ്ങളിൽ നിന്ന് ആരംഭിച്ച് ദ്വാദശ ആദിത്യങ്ങളോടു ചേർന്ന—ഈ അഷ്ടാക്ഷര മന്ത്രവും പ്രസ്താവിക്കപ്പെട്ടിരിക്കുന്നു; ഇതിന്റെ സ്വഭാവം അഷ്ടപ്രകൃതി-ആത്മകമാണെന്ന് പറയുന്നു.
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: adbhuta
Secondary Rasa: shanta
It links mantra-structure (twelve- and eight-syllabled forms) with cosmic principles—Ādityas and the eightfold Prakṛti—teaching that mantra is not mere sound but a mapped spiritual technology aligning the practitioner with universal forces.
By presenting mantras as deity-connected (Āditya-linked) and principle-embodying (Prakṛti-linked), it implies that devotional japa becomes effective when the devotee contemplates both the devatā and the tattva embodied by the mantra.
It highlights Chandas/phonetics-based mantra classification (by syllable-count) and a Jyotiṣa-style deity mapping (Ādityas), showing how technical mantra metrics and cosmological correspondences are used in ritual and recitation.