Matsya Purana — Nārāyaṇa as Haṃsa in the Cosmic Ocean: Vedic Yajña-Puruṣa and Mārkaṇḍeya’s Vi...
अहं भूतस्य भव्यस्य वर्तमानस्य संभवः यत्किंचित्पश्यसे विप्र यच्छृणोषि च किंचन //
ahaṃ bhūtasya bhavyasya vartamānasya saṃbhavaḥ yatkiṃcitpaśyase vipra yacchṛṇoṣi ca kiṃcana //
I am the origin of the past, the future, and the present. O Brahmin, whatever little you see, and whatever little you hear—(all of it arises from Me).
It asserts a single supreme source behind all temporal phases—past, future, and present—implying that creation and dissolution occur within that divine ground rather than outside it.
By grounding all experience in a higher source, it supports dharmic living: a king or householder should act with restraint and accountability, recognizing that all actions and outcomes unfold under the same cosmic order.
No direct Vastu or ritual rule is stated; the takeaway is foundational—temple, ritual, and iconography are meaningful because they orient perception (seeing/hearing) toward the ultimate source described here.