उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
विश्वामित्र ऋषिस्त्रिष्टुप् छन्दो विष्णुस्तु दैवतम् वाकारो हेमवर्णो ऽस्य स्थानं चैवोत्तरं मुखम्
viśvāmitra ṛṣistriṣṭup chando viṣṇustu daivatam vākāro hemavarṇo 'sya sthānaṃ caivottaraṃ mukham
สำหรับบทนี้ ฤๅษีคือวิศวามิตร ฉันท์เป็นตรีษฏุป เทวประธานคือวิษณุ พยางค์เมล็ด “วะ” มีสีทอง และที่ตั้งอยู่ ณ พระพักตร์ทิศเหนือ
Suta Goswami (narrating mantra-viniyoga details within the Purva-Bhaga)
It gives the viniyoga framework—rishi, chandas, devatā, bīja, color, and directional placement—used to sanctify recitation and nyāsa before Linga-centered japa or pūjā.
By assigning Viṣṇu as devatā within a Shaiva textual setting, it reflects the Purāṇic teaching that Pati (Śiva) can be approached through integrated devatā-tattvas—without collapsing distinctions—showing unity of sacred functions while Śiva remains the liberating Lord beyond pāśa.
Mantra-viniyoga and nyāsa: establishing the mantra’s rishi–meter–deity identity and placing it to the “northern face,” a directional discipline supporting focused japa and Pāśupata-style inner alignment.