उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
पादादिमूर्धपर्यन्तं संहारो भवति प्रिये हृदयास्यगलन्यासः स्थितिन्यास उदाहृतः
pādādimūrdhaparyantaṃ saṃhāro bhavati priye hṛdayāsyagalanyāsaḥ sthitinyāsa udāhṛtaḥ
愛しき者よ、収摂(saṃhāra)は足より頭頂に至るまで上向きに行う。心・口・喉への安置は、住持のニヤーサ(sthiti-nyāsa)、すなわち保ち支える臨在のニヤーサと説かれる。
Suta Goswami (narrating an internal Shaiva teaching dialogue, likely Shiva instructing Parvati)
It maps Linga-puja onto the sādhaka’s own body: saṃhāra is enacted as an upward reabsorption from feet to crown, while sthiti is stabilized by mantra-nyāsa at the heart, mouth, and throat—making the worship internal as well as external.
Shiva is implied as Pati who governs the cosmic functions: saṃhāra (dissolution) and sthiti (sustenance). Through nyāsa, the bound pashu (individual soul) aligns its inner faculties with Shiva’s sovereign powers, loosening pāśa (bondage).
A nyāsa-krama used in Shaiva/Pāśupata-oriented worship: upward saṃhāra-bhāvanā (withdrawal of prāṇa/śakti) and sthiti-nyāsa on heart–mouth–throat to steady mantra, breath, and awareness during Linga-puja.