Matsya Purana — Agastya’s Origin
अम्भः सामुद्रमाविश्य संनिवेशमकुर्वत अशक्या इति ते ऽप्यग्निमारुताभ्यामुपेक्षिताः //
ambhaḥ sāmudramāviśya saṃniveśamakurvata aśakyā iti te 'pyagnimārutābhyāmupekṣitāḥ //
Entering the oceanic waters, they attempted to establish a secure station; but deeming it impossible, even they were left unattended—beyond the aid of fire and wind.
It emphasizes the overpowering nature of the deluge: even attempts to establish a secure place within the swelling ocean-waters fail, and ordinary elemental supports (fire and wind) are ineffective or withdrawn.
Indirectly, it underlines a Purāṇic ethic: in times of cosmic or societal collapse, human planning and force are limited; one should prioritize dharmic preparedness—protection of dependents, restraint, and reliance on righteous guidance rather than mere technical fixes.
The term saṃniveśa (“settlement/encampment”) highlights that site-making and stability are impossible in flood conditions—an implicit reminder that vastu (site selection) depends on firm, auspicious ground, and that ritual/technical measures cannot override pralaya-scale instability.