Liṅga-pratiṣṭhāvidhiḥ — Installation Standards and Auspicious Parameters for Liṅga Worship
प्रणवेनादिसंयुक्तं ब्राह्मणानां विशिष्यते । दीक्षायुक्तं गुरोर्ग्राह्यं मंत्रं ह्यथ फलाप्तये
praṇavenādisaṃyuktaṃ brāhmaṇānāṃ viśiṣyate | dīkṣāyuktaṃ gurorgrāhyaṃ maṃtraṃ hyatha phalāptaye
A mantra that begins with the Praṇava (Oṁ) is especially prescribed for Brāhmaṇas. And for the attainment of its true fruit, the mantra should be received from the Guru, being properly endowed with dīkṣā (initiation).
Suta Goswami (narrating Shiva’s teaching tradition to the sages at Naimisharanya)
Tattva Level: pasha
Shiva Form: Ishana
It teaches that mantra is not merely sound but a consecrated power: when linked to Oṁ and received through dīkṣā from a competent guru, it becomes effective for inner purification and the grace of Pati (Lord Shiva), leading toward liberation.
Linga-worship in the Shiva Purana is supported by mantra-japa and ritual purity; this verse emphasizes that the mantra used in Saguna Shiva worship becomes truly fruitful when transmitted through the guru-paramparā with proper initiation.
Receive a Shaiva mantra through dīkṣā from a qualified guru and practice disciplined japa—especially with Oṁ as the praṇava—so the worship yields its intended spiritual fruit.