Pāśupata-vrata Māhātmya: Dvādaśa-Liṅga Mahāvrata, Month-wise Dravya, and Pūjā-krama
सत्यं शौचं दया शान्तिः संतोषो दानमेव च पौर्णमास्याममावास्याम् उपवासं च कारयेत्
satyaṃ śaucaṃ dayā śāntiḥ saṃtoṣo dānameva ca paurṇamāsyāmamāvāsyām upavāsaṃ ca kārayet
సత్యం, శౌచం, దయ, శాంతి, సంతోషం, దానం—ఇవన్నీ ఆచరించాలి; అలాగే పౌర్ణమి, అమావాస్య రోజుల్లో ఉపవాసం కూడా చేయాలి.
Suta Goswami (narrating Shaiva dharma/vrata teachings within the Linga Purana discourse)
It frames Linga-puja as inseparable from ethical discipline—truth, purity, compassion, peace, contentment, and charity—supported by vrata practices like fasting on Purnima and Amavasya.
Shiva is implied as Pati, the Lord toward whom the purified mind turns; by cultivating sattvic virtues and restraint, the pashu becomes fit for Shiva’s grace that removes pasha.
Upavasa (fasting/abstinence) on the lunar observances of full moon and new moon, integrated with dana and moral restraints as a Shaiva vrata aligned with Pashupata-style purification.