The Exposition of the Krishna Mantra (Kṛṣṇa-mantra-prakāśa): Nyāsa, Dhyāna, Worship, Yantra, and Prayoga
आभ्यामष्टादशक्लिपः स्याद्विंशत्यक्षरो मनुः । शालग्रामे मणौ यंत्रे मंडले प्रतिमासु वा ॥ १६० ॥
ābhyāmaṣṭādaśaklipaḥ syādviṃśatyakṣaro manuḥ | śālagrāme maṇau yaṃtre maṃḍale pratimāsu vā || 160 ||
এই দুই (বীজ) দ্বারা অষ্টাদশ-কল্পিত বিন্যাস হয় এবং মন্ত্রটি বিশ অক্ষরের হয়। এটি শালগ্রাম-শিলায়, মণিতে, যন্ত্রে, পবিত্র মণ্ডলে অথবা প্রতিমাতেও প্রয়োগ করা যায়।
Narada (teaching in the Vedanga/ritual-technical context to the Sanatkumara tradition)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It teaches that mantra-power is not only recited but also ritually installed on sacred supports (Śālagrāma, yantra, maṇḍala, images), making devotion and worship more tangible and rule-governed.
By permitting mantra-application to Śālagrāma and pratimās, it frames bhakti as disciplined worship where the devotee approaches the divine through sanctified forms and properly constructed mantras.
It highlights technical mantra-vidyā: counting and structuring akṣaras (syllables) and prescribing correct ritual loci (yantra/maṇḍala/pratimā) for mantra-installation.