Adhyaya 17: लिङ्गोद्भव—ब्रह्मविष्ण्वहङ्कार-शमनं, ओंकार-प्रादुर्भावः, मन्त्र-तत्त्वं च
आद्यवर्णमकारं तु उकारं चोत्तरे ततः मकारं मध्यतश्चैव नादान्तं तस्य चौमिति
ādyavarṇamakāraṃ tu ukāraṃ cottare tataḥ makāraṃ madhyataścaiva nādāntaṃ tasya caumiti
Bunyi pertama ialah “A”, kemudian “U”; “M” berada di tengah, dan ia memuncak pada nāda, getaran halus. Keseluruhannya disebut “Om”—Pranava, rupa bunyi Pati (Śiva) yang dimuliakan dalam Śaiva Siddhānta.
Suta Goswami (narrating the Linga Purana teaching on Pranava to the sages of Naimisharanya)
It anchors Linga-upāsanā in Pranava-sādhana: ‘Om’ (A-U-M with nāda) is presented as the sonic body of Pati (Śiva), making mantra-japa and nāda-anuśandhāna a core support for Linga-pūjā.
Śiva-tattva is indicated as transcending gross sound yet approachable as Pranava—moving from articulated letters (A-U-M) into subtle nāda, mirroring the ascent from pasha-bound pashu toward the supreme Pati.
Japa of ‘Om’ with contemplation of its stages—A, U, M, and the dissolving nāda—i.e., a Pāśupata-aligned meditative practice of inner resonance (nāda) supporting mantra and Linga-upāsanā.