उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
हृदये गुह्यके चैव पादयोर्मूर्ध्नि वाचि वा कण्ठे चैव न्यसेदेव प्रणवादित्रिभेदतः
hṛdaye guhyake caiva pādayormūrdhni vāci vā kaṇṭhe caiva nyasedeva praṇavāditribhedataḥ
当依以普拉那瓦为首之三重法门行尼亚萨:将神性安置于心间、隐秘处、双足、头顶、言语之中,并亦安于喉间。
Suta Goswami (narrating Shiva-oriented ritual teaching within the Linga Purana tradition)
It teaches inner Linga-worship through mantra-nyāsa: installing Shiva in key subtle-body centers so the external pūjā becomes grounded in direct Pati-awareness rather than mere outer offering.
Shiva is presented as immanent and installable as the indwelling Lord (Pati) across heart, speech, and vital centers—showing that Shiva-tattva pervades the pashu’s embodied field and can be realized through disciplined mantra.
Mantra-nyāsa beginning with Praṇava (Oṁ), applied in a threefold manner, aligning body and speech as instruments of Pashupata-style purification and concentration.