न्यासवर्णनम् (Nyāsa-varṇanam) — Description of Nyāsa in the Saṃnyāsa Procedure
अपसर्प्पन्त्विति प्रोच्य प्रणवं तदनंतरम् । अस्त्राय फडिति प्रोच्य पार्ष्णिघातत्रयेण तु
apasarppantviti procya praṇavaṃ tadanaṃtaram | astrāya phaḍiti procya pārṣṇighātatrayeṇa tu
Uttering, “Depart, depart!”, one should next pronounce the Praṇava (Oṃ). Then, saying, “For the Astra—phaṭ!”, one should strike three times with the heel, driving away obstructing forces and securing the rite under Śiva’s mantric protection.
Suta Goswami
Tattva Level: pasha
Shiva Form: Kālabhairava
Mantra: apasarpantu; oṃ; astrāya phaṭ
It teaches a Shaiva method of purification and protection: by commanding obstructive forces to depart, invoking Oṃ, and sealing the rite with the astra-mantra “phaṭ,” the aspirant safeguards worship so it remains oriented to Śiva (Pati) rather than disturbed by pasha-like impediments.
Before Linga-pūjā and other Saguna Śiva rites, the space and mind are ritually protected; “Oṃ” and the astra-phaṭ act as a boundary of Śiva’s śakti so the offering is performed without interference, maintaining sanctity and focus on the Lord’s presence.
A brief protective act (rakṣā-vidhi): say “apasarpantu,” then chant Oṃ, then utter “astrāya phaṭ,” accompanied by three heel-strikes—used to ward off obstacles before japa, dhyāna, or pūjā.