उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
आत्मानं प्रणवं विद्धि सर्वव्यापिनमव्ययम् शक्तिस्त्वमेव देवेशि सर्वदेवनमस्कृते
ātmānaṃ praṇavaṃ viddhi sarvavyāpinamavyayam śaktistvameva deveśi sarvadevanamaskṛte
プラナヴァ(Oṁ)を、遍満して滅びなき汝自身のアートマンであると知れ。汝こそがシャクティ(Śakti)、女神よ、諸天の主にして、すべての神々が礼拝して頭を垂れる御方である。
Suta Goswami (narrating an internal Shaiva teaching that praises Devi as Shiva’s Śakti)
It anchors Linga-upāsanā in mantra-tattva: the Praṇava (Oṁ) is affirmed as the imperishable, all-pervading Self, implying that worship of the Linga is worship of the very Pati (Lord) present as transcendent consciousness, approached through Oṁ and Śakti.
Shiva-tattva is indicated as sarvavyāpin and avyaya—the all-pervading, undecaying Self—while Śakti is declared inseparable and sovereign; together they express Pati as consciousness (Śiva) and power (Śakti) that sustains and reveals the cosmos.
Japa and contemplation of the Praṇava (Oṁ) as ātman is implied—used in Pāśupata-oriented sādhanā to loosen pāśa (bondage) on the paśu (individual soul) by centering awareness on Pati and Śakti.