पाशुपतव्रतविधिः | The Procedure of the Supreme Pāśupata Vow
अर्कवारे तथार्द्रायां पञ्चदश्यां च पक्षयोः । अष्टम्यां च चतुर्दश्यां शक्तस्तूपवसेदपि
arkavāre tathārdrāyāṃ pañcadaśyāṃ ca pakṣayoḥ | aṣṭamyāṃ ca caturdaśyāṃ śaktastūpavasedapi
Pada hari Ahad, pada hari Ārdrā (nakṣatra), pada hari ke-15 bagi kedua-dua paruh bulan, dan juga pada hari ke-8 serta ke-14—jika mampu—hendaklah dia berupavāsa (berpuasa) sebagai suatu nazar pada waktu-waktu itu.
Suta Goswami
Tattva Level: pashu
Shiva Form: Mahādeva
Sthala Purana: Not tied to a single jyotirliṅga; it gives vrata-kāla (auspicious observance times) for upavāsa supporting Śiva-upāsanā.
Significance: Fasting on specified tithi/nakṣatra days is presented as a purifier and stabilizer of sādhana, strengthening adhikāra for Śiva worship.
It highlights disciplined devotion (vrata) through upavāsa on specially charged lunar and stellar timings, training the devotee’s senses toward Shiva-bhakti and inner purity, which supports liberation-oriented practice.
Fasting on these tithis and nakṣatra-days is traditionally paired with intensified Linga-pūjā—offering water, bilva, mantra-japa, and night vigil—directing the mind to Saguna Shiva as a doorway to realizing Shiva as the supreme Pati.
Upavāsa (fasting) on Sundays, Ārdrā, aṣṭamī, caturdaśī, and pañcadaśī; practically, it is commonly accompanied by Om Namaḥ Śivāya japa, Rudrākṣa-wearing, and (where appropriate) Tripuṇḍra/bhasma with focused meditation on Shiva.