Matsya Purana — War of Devas and Dānavas: Yama and Kubera Defeated; Kālanemi’s Māyā and the A...
हृत्वा श्रियमिवानर्थो दुर्वृत्तस्यापतद्दृढः स तु तेन प्रहारेण दृष्ट्वा सतिमिरा दिशः //
hṛtvā śriyamivānartho durvṛttasyāpataddṛḍhaḥ sa tu tena prahāreṇa dṛṣṭvā satimirā diśaḥ //
As though misfortune had seized his śrī—his prosperity—calamity fell heavily upon the ill-conducted man; and from that blow he saw the quarters veiled in darkness.
This verse is not about cosmic pralaya; it uses darkness and disorientation as an immediate, personal consequence of calamity, emphasizing moral causality rather than cosmology.
It warns that adharma and дурvṛtta (bad conduct) cause śrī (prosperity) to depart; for kings and householders, maintaining righteous conduct, restraint, and fair dealing is presented as the practical safeguard of stability and fortune.
No explicit Vastu or ritual procedure is stated; the verse functions as a nīti-style moral image—prosperity leaving and darkness overtaking—rather than a technical prescription.