Matsya Purana — Narasimha’s Victory over Hiraṇyakaśipu and the Catalogue of Apocalyptic Omens
आवहः प्रवहश्चैव विवहो ऽथ ह्युदावहः परावहः संवहश्च महाबलपराक्रमाः //
āvahaḥ pravahaścaiva vivaho 'tha hyudāvahaḥ parāvahaḥ saṃvahaśca mahābalaparākramāḥ //
Āvaha, Pravaha, Vivaha, and also Udāvaha; likewise Parāvaha and Saṃvaha—these are (winds) of great strength and mighty force.
It identifies powerful cosmic winds that operate within the ordered universe; such forces are typically understood as part of the mechanisms that sustain, move, and can also upheave the worlds during great transitions like Pralaya.
By stressing that the cosmos is governed by named, orderly forces, the verse supports a key Purāṇic ethic: a king and householder should uphold order (dharma) in their realm and home, aligning human governance with cosmic regulation rather than disorder.
While not giving a direct building rule, the verse’s focus on directional/cosmic winds underpins later Vāstu thinking: site-planning and ritual orientation are ideally harmonized with natural and cosmic movements, a common rationale in Puranic temple architecture rules.