Matsya Purana — Measures of Time: Caturyuga Computation
एतच्चतुर्दशगुणं कल्पमाहुस्तु तद्विदः ततस्तु प्रलयः कृत्स्नः स तु संप्रलयो महान् //
etaccaturdaśaguṇaṃ kalpamāhustu tadvidaḥ tatastu pralayaḥ kṛtsnaḥ sa tu saṃpralayo mahān //
Those who know the doctrine declare this to be a Kalpa fourteenfold in measure; thereafter occurs the total dissolution—indeed, that is the great and complete dissolution (Mahā-saṃpralaya).
It states that after a fourteenfold cosmic period described as a kalpa-measure, a complete dissolution occurs—identified specifically as the great total dissolution (Mahā-saṃpralaya), where everything is reabsorbed.
By emphasizing the inevitability of total dissolution after vast cycles of time, it supports the Purāṇic ethic of detachment and righteous conduct (dharma): kings and householders should govern and live virtuously without clinging to impermanent power, wealth, or works.
No direct Vāstu or ritual procedure is specified; the verse functions as a cosmological marker of time and dissolution, often used to frame why rituals and sacred constructions are meritorious yet ultimately transient within pralaya-bound cycles.