Mantraśodhana, Dīkṣā-krama, Guru-Pādukā, Ajapā-Haṃsa, and Ṣaṭcakra-Kuṇḍalinī Sādhana
तृतीयं पुंसि सिद्धाख्यं तुरीयमरिसंज्ञकम् । द्वयोर्वर्णावेककोष्ठे सिद्धसिद्धेति तन्मतम् ॥ ६ ॥
tṛtīyaṃ puṃsi siddhākhyaṃ turīyamarisaṃjñakam | dvayorvarṇāvekakoṣṭhe siddhasiddheti tanmatam || 6 ||
男性形における第三の類は「シッダ(Siddha)」と呼ばれ、第四は「アリ(Ari)」と名づけられる。二つの字が同一の区画(koṣṭha)を共有するとき、その公認の呼称は「シッダ—シッダ(Siddha–Siddha)」である。
Sanatkumāra (teaching Nārada in a Vedāṅga/technical section)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It preserves the precision of Vedic recitation by defining technical labels for sound/letter categories—an essential support (Vedāṅga) for maintaining the purity of mantra and śruti transmission.
Indirectly: correct phonetic and grammatical understanding safeguards accurate mantra-japa and Vedic chanting, which in turn strengthens disciplined worship and devotional practice.
A technical rule of Śikṣā/Vyākaraṇa-style classification: naming the 3rd and 4th categories (“Siddha,” “Ari”) and specifying how two varṇas placed in one koṣṭha receive a combined designation (“Siddha–Siddha”).