नन्दिकेश्वरोत्पत्तिः — Nandikesvara’s Origin, Shiva’s Boons, and the Rise of Sacred Rivers
प्रदक्षिणीकृत्य च तं रुद्रजाप्यरतो ऽभवम् हृत्पुण्डरीके सुषिरे ध्यात्वा देवं त्रियंबकम्
pradakṣiṇīkṛtya ca taṃ rudrajāpyarato 'bhavam hṛtpuṇḍarīke suṣire dhyātvā devaṃ triyaṃbakam
അവനെ പ്രദക്ഷിണം ചെയ്ത് ഞാൻ രുദ്രജപത്തിൽ ലീനനായി; ഹൃദയപദ്മത്തിന്റെ സൂക്ഷ്മ ഗുഹയിൽ ത്ര്യമ്പക ദേവനെ ധ്യാനിച്ചു.
Suta Goswami (narrating an internal devotional practice account within the Purva-Bhaga narrative)
It links outer Linga-upacāra (pradakṣiṇā/circumambulation) with inner worship—Rudra-japa and meditation on Tryambaka in the heart-lotus—showing that true Linga devotion culminates in internalization of Shiva as Pati.
Shiva is invoked as Tryambaka, the all-seeing Lord, approachable through mantra and dhyāna; as Pati, He is the liberator whose grace loosens pāśa (bondage) and elevates the paśu (individual soul) toward freedom.
A combined sādhana: pradakṣiṇā as devotional rite, Rudra-japa as mantra discipline, and hṛt-puṇḍarīka-dhyāna (heart-lotus meditation) aligned with Pāśupata-oriented inner worship.