The Explanation of Sandhyā and Related Daily Observances
Saṅdhyā-ādi Nitya-karma-Vidhi
नसोर्द्वयं कपोले च द्वयं द्वे द्विरदच्छदे । एकं तु रसनामूले ग्रीवायामेकमेव च ॥ १०३ ॥
nasordvayaṃ kapole ca dvayaṃ dve dviradacchade | ekaṃ tu rasanāmūle grīvāyāmekameva ca || 103 ||
नासाछिद्रांवर दोन, कपोलांवर दोन; तसेच ‘द्विरदच्छद’ (कनपट/शंखप्रदेश) येथे दोन-दोन. जिभेच्या मुळाशी एक आणि ग्रीवेतही एकच (स्थान) आहे.
Sanatkumara (in instruction to Narada on Śikṣā/phonetics)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It emphasizes that mantra-power depends on precise sound-production; knowing the bodily loci of articulation supports correct recitation, preserving the sanctity and efficacy of Vedic speech.
Bhakti in the Purāṇic-Vedic sense includes disciplined worship with accurately pronounced names and mantras; this verse supports devotion by grounding it in correct śabda (sacred sound) practice.
Vedāṅga-Śikṣā (phonetics): it lists specific bodily points associated with producing or resonating sounds, a practical aid for training in mantra-recitation and Vedic chanting.