उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
आकारो नेत्रमस्त्रं तु यकारः परिकीर्तितः इत्थमङ्गानि विन्यस्य ततो वै बन्धयेद्दिशः
ākāro netramastraṃ tu yakāraḥ parikīrtitaḥ itthamaṅgāni vinyasya tato vai bandhayeddiśaḥ
La sílaba “Ā” se declara como el Netra-astra, el arma del ojo—la conciencia protectora; y la sílaba “Ya” se enseña igualmente como un miembro del mantra. Habiendo realizado así el nyāsa en los aṅgas, entonces debe atar las direcciones, asegurando el recinto ritual para que la adoración de Pati (Śiva) quede libre de obstáculos nacidos del pāśa.
Suta Goswami (narrating Shiva-puja vidhi to the sages of Naimisharanya)
It teaches the preparatory protection of the shrine through mantra-nyāsa and dikbandhana, ensuring the worshipper’s space is sealed against disturbances before approaching the Liṅga as Pati.
By invoking the Netra-astra, it implies Śiva-tattva as luminous awareness (netra/vision) that dispels pāśa (bondage) and guards the sādhaka’s rite with sovereign protection.
Mantra-nyāsa on the limbs followed by dikbandhana (binding the directions), a standard Shaiva protective rite used in Linga-puja and aligned with Pāśupata-style discipline of guarded, consecrated practice.