उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
गुरुप्रियकरो मन्त्रं विनियोक्तुं ततो ऽर्हति विनियोगं प्रवक्ष्यामि सिद्धमन्त्रप्रयोजनम्
gurupriyakaro mantraṃ viniyoktuṃ tato 'rhati viniyogaṃ pravakṣyāmi siddhamantraprayojanam
因此,能令上师欢喜之真言,堪当依法而用。今我将宣说其viniyoga——此成就真言的正当运用与所为之目的。
Suta Goswami
It establishes that mantra in Linga-puja must be applied through proper viniyoga under Guru-sanction; correctness of application is presented as essential for a mantra’s siddhi and for pleasing Shiva (Pati).
Indirectly, it frames Shiva-tattva as accessed through disciplined, Guru-guided mantra-prayoga—implying that grace and right method remove pasha (bondage) for the pashu (soul) and orient it to Pati (Shiva).
Mantra-viniyoga: the formal ritual assignment and application of a siddha-mantra (used in Shaiva puja and Pashupata-oriented sadhana) as taught in a Guru-parampara.