Dīkṣā, Mantra-Types, Mantra-Doṣas, and Qualifications of Ācārya–Śiṣya
सार्द्धद्वादशवर्णो वा धूमितो र्निदितस्तु सः । सार्द्धबीजत्रययुतो मंत्रो विंशतिवर्णवान् ॥ ४६ ॥
sārddhadvādaśavarṇo vā dhūmito rniditastu saḥ | sārddhabījatrayayuto maṃtro viṃśativarṇavān || 46 ||
Ce mantra, s’il comporte douze syllabes et demie, est appelé « Dhūmita » et se trouve blâmé. Mais lorsqu’il est pourvu de trois bījas et demie, le mantra devient alors un mantra de vingt syllabes.
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It stresses that mantra efficacy depends on correct mantra-lakṣaṇa—especially syllable-count and proper inclusion of bījas—so that practice is aligned with śāstric phonetics and ritual science rather than arbitrary recitation.
Bhakti is supported by disciplined sādhana: the verse implies devotion should be expressed through properly formed mantra-japa, where correct sound-structure (varṇa) safeguards the intended devotional focus and results.
Śikṣā (Vedic phonetics) and mantra-śāstra: the verse gives a technical rule about mantra syllable-counts and how adding bīja-syllables changes the mantra’s measured length and acceptability.