Matsya Purana — Solar–Lunar Motions
सप्तद्वीपसमुद्राया विस्तारो मण्डलस्य तु इत्येतदिह संख्यातं पुराणे परिमाणतः //
saptadvīpasamudrāyā vistāro maṇḍalasya tu ityetadiha saṃkhyātaṃ purāṇe parimāṇataḥ //
Thus, in this Purāṇa, the extent of the cosmic circle (maṇḍala)—together with the seven continents and their encircling oceans—has been enumerated here according to its proper measures.
This verse is not describing Pralaya directly; it functions as a concluding statement for a cosmography passage, emphasizing that the Purāṇa has systematically measured and enumerated the world-mandala with its seven dvīpas and oceans.
Indirectly, it supports dharma by grounding ritual calendars, pilgrimage knowledge, and sacred geography—resources traditionally used by kings for governance of tīrthas and by householders for vrata, dāna, and pilgrimage planning.
While it does not give Vāstu rules, it highlights the idea of precise 'parimāṇa' (measure), a core Purāṇic principle also echoed in temple layout and mandala-based ritual planning—where correct proportions are considered essential.