Matsya Purana — Vishnu’s Names Across Yugas and the Gods’ Refuge During the Tārakāmaya War
प्रसादजं ह्यस्य विभोर् अदित्याः पुत्रकारणम् वधार्थं सुरशत्रूणां दैत्यदानवरक्षसाम् //
prasādajaṃ hyasya vibhor adityāḥ putrakāraṇam vadhārthaṃ suraśatrūṇāṃ daityadānavarakṣasām //
For this son of Aditi was born from the grace of the all-pervading Lord—his very birth being the cause (and means) for the destruction of the enemies of the gods: the Daityas, Dānavas, and Rākṣasas.
This verse is not about Pralaya; it explains avatāra-birth as arising from the Lord’s grace, with the specific cosmic function of removing demonic forces opposed to the gods.
It frames righteous governance as protection of dharma: just as the Lord’s manifestation has the purpose of suppressing disruptive forces, a king or householder is expected to restrain adharma and safeguard social and ritual order.
No Vāstu or temple-architecture rule is stated here; the ritual takeaway is theological—divine ‘prasāda’ (grace) is presented as the efficacious cause behind sacred outcomes, including the appearance of a protector.