Matsya Purana — The Origin of Yajña in Tretā Yuga and the Debate on Animal Sacrifice vs. Non-...
तस्मान्न वाच्यो ह्येकेन बहुज्ञेनापि संशयः बहुधारस्य धर्मस्य सूक्ष्मा दुरनुगा गतिः //
tasmānna vācyo hyekena bahujñenāpi saṃśayaḥ bahudhārasya dharmasya sūkṣmā duranugā gatiḥ //
Therefore, even a very learned person should not try to settle a doubt all by himself; for the course of dharma, which runs in many streams, is subtle and difficult to follow.
This verse does not describe pralaya directly; it teaches that dharma is subtle and multi-branched, so certainty in moral judgment is difficult and should not be asserted by a single individual.
It warns rulers and householders that dharma often has competing obligations; decisions should be made with humility, consultation, and attention to context rather than unilateral, overconfident judgments—even by the learned.
No specific Vastu or ritual procedure is mentioned; the takeaway is methodological—ritual and legal duties in the Matsya Purana can be subtle and require careful, tradition-aware interpretation.