उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
यस्यैवं हृदि संस्थो ऽयं मन्त्रः स्यात्पारमेश्वरः तेनाधीतं श्रुतं तेन तेन सर्वमनुष्ठितम्
yasyaivaṃ hṛdi saṃstho 'yaṃ mantraḥ syātpārameśvaraḥ tenādhītaṃ śrutaṃ tena tena sarvamanuṣṭhitam
ആരുടെ ഹൃദയത്തിൽ ഈ പരമേശ്വരമന്ത്രം ഇങ്ങനെ ദൃഢമായി സ്ഥാപിതമാകുന്നുവോ, അവൻ ശാസ്ത്രങ്ങൾ പഠിച്ചതുപോലെയും, അവൻ അവ ശ്രവിച്ചതുപോലെയും, അവൻ എല്ലാ പുണ്യാനുഷ്ഠാനങ്ങളും നിർവഹിച്ചതുപോലെയും ആകുന്നു।
Suta Goswami (narrating the mantra’s greatness within the Linga Purana discourse)
It teaches that true Linga-worship is internalized: when Śiva’s Parameśvara-mantra abides in the heart, the merit of external rites and scriptural duties is fulfilled through inner devotion and constant remembrance.
Śiva as Pati (the Supreme Lord) is accessible through mantra as living presence in the heart; His grace makes the seeker’s knowledge (study/hearing) and karma (observances) spiritually complete.
Heart-established mantra-sādhana—steady japa with bhāva leading to inner absorption (dhyāna/niṣṭhā), a key Pāśupata-oriented approach where inner realization supersedes mere external performance.