Matsya Purana — Lineage of Yayāti through Yadu and the Deeds of Kārtavīrya Arjuna
तदा निश्चलमूर्धानो भवन्ति च महोरगाः सायाह्ने कदलीखण्डा निर्वातस्तिमिता इव //
tadā niścalamūrdhāno bhavanti ca mahoragāḥ sāyāhne kadalīkhaṇḍā nirvātastimitā iva //
At that time even the great serpents become motionless, their heads unmoving; and in the late afternoon the clumps of banana plants stand as if stilled in windless air.
It presents a nimitta (omen): an unnatural, windless stillness where even animals and plants appear frozen—used in Purāṇic narration as a sign that a major disturbance or dissolution-like event is approaching.
By highlighting recognizable omens, it supports the ruler’s and householder’s duty of vigilance—reading environmental signs to prepare, protect dependents, and take timely, dharmic precautions.
No direct Vāstu or ritual rule is stated; indirectly, it reflects the broader Purāṇic idea that abnormal stillness is an inauspicious nimitta, prompting postponement of major undertakings or enhanced protective rites.