उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
यतीनां संहृतिर् न्यासः सिद्धिर् भवति नान्यथा अङ्गन्यासः करन्यासो देहन्यास इति त्रिधा
yatīnāṃ saṃhṛtir nyāsaḥ siddhir bhavati nānyathā aṅganyāsaḥ karanyāso dehanyāsa iti tridhā
Para los yati, el nyāsa es la retirada interior y reabsorción (saṃhṛti) de las facultades en el Sí mismo; sólo por esto surge la siddhi, y no de otro modo. Este nyāsa se enseña en tres formas: aṅga-nyāsa (en los miembros), kara-nyāsa (en las manos) y deha-nyāsa (en el cuerpo).
Suta Goswami (narrating Purva-Bhaga teachings on Shiva-puja and nyasa to the sages of Naimisharanya)
It defines nyāsa as the essential consecration before Shiva-upāsanā—internalizing mantra-śakti so the worshipper’s body becomes fit to approach the Linga as Pati (Shiva), enabling effective pūjā and mantra-japa.
By stressing saṃhṛti (inward re-absorption), it points to Shiva-tattva as the ground into which all powers and movements resolve—Pati as the supreme locus of dissolution and mastery, approached through mantra and inner withdrawal.
Nyāsa as both ritual and yogic method: aṅga-nyāsa, kara-nyāsa, and deha-nyāsa—placing mantras on limbs, hands, and the whole body to withdraw the pashu (individual soul) from pāśa (bondage) toward siddhi under Pati (Shiva).