उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
प्राङ्मुखोदङ्मुखो वापि न्यासकर्म समाचरेत् स्मरेत् पूर्वम् ऋषिं छन्दो दैवतं बीजमेव च
prāṅmukhodaṅmukho vāpi nyāsakarma samācaret smaret pūrvam ṛṣiṃ chando daivataṃ bījameva ca
Mit Blick nach Osten oder nach Norden soll man den Ritus des Nyāsa vollziehen. Zuerst erinnere man ṛṣi, chandas, daivatam und bīja des Mantras, damit der Paśu — die gebundene Seele — Körper und Geist ausrichte als würdiges Gefäß für die Verehrung des Pati, des Herrn Śiva.
Suta Goswami (narrating Shiva-puja/nyasa procedure within the Linga Purana’s discourse)
It establishes the correct pre-condition for Linga-puja: nyāsa done while facing auspicious directions, preceded by remembering the mantra’s ṛṣi, chandas, devatā, and bīja—so worship becomes properly consecrated rather than merely external.
By identifying Śiva as the mantra’s presiding deity (daivatam), it points to Śiva-tattva as the governing Presence invoked through sound (mantra), making inner recollection and alignment essential for the Pashu to approach Pati.
Nyāsa—ritual installation of mantra in the limbs/body—along with the preliminary mantra-anga remembrance (ṛṣi–chandas–devatā–bīja), a key preparatory discipline aligned with Shaiva mantra-sādhana and Pashupata-oriented worship.