व्यपोहनस्तवनिरूपण-प्रसङ्गे नक्तभोजन-शिवव्रतविधिः (वार्षिक-प्रतिमास-क्रमः)
क्षीरषष्टिकभक्तेन सम्पूज्य वृषभध्वजम् पौर्णमास्यां घृताद्यैस्तु स्नाप्य पूज्य यथाविधि
kṣīraṣaṣṭikabhaktena sampūjya vṛṣabhadhvajam paurṇamāsyāṃ ghṛtādyaistu snāpya pūjya yathāvidhi
On the full-moon day, having duly worshipped the Bull-bannered Lord (Śiva) with the kṣīra-ṣaṣṭika rice offering, one should bathe Him with ghee and other sacred unguents, and then worship again according to the prescribed rite. Through such disciplined pūjā, the paśu approaches Pati and the bonds (pāśa) are loosened.
Suta Goswami (narrating Śiva-pūjā-vidhi to the sages of Naimiṣāraṇya)
It specifies a Paurṇamāsī (full-moon) procedure: offering milk-cooked śaṣṭika rice, performing abhiṣeka with ghee and related substances, and completing worship strictly by vidhi—presenting Linga/Śiva-pūjā as a regulated means to approach Pati.
By naming Him Vṛṣabhadhvaja, it points to Śiva as Pati—the sovereign Lord who is approached through sacred acts; ritual purity and devotion become instruments for the pashu to move away from pāśa toward Śiva’s grace.
Paurṇamāsī-vrata aligned Śiva-pūjā with abhiṣeka (snāna) using ghee and auspicious substances, plus a specific naivedya (kṣīra-ṣaṣṭika)—a discipline supportive of Pāśupata orientation through regulated worship.