Matsya Purana — War of Devas and Asuras; Birth of Aurva Fire; Countering Tamasī Māyā through ...
नास्ति योगं विना सिद्धिर् न वा सिद्धिं विना यशः नास्ति लोके यशोमूलं ब्रह्मचर्यात्परं तपः //
nāsti yogaṃ vinā siddhir na vā siddhiṃ vinā yaśaḥ nāsti loke yaśomūlaṃ brahmacaryātparaṃ tapaḥ //
Without yoga there is no attainment (siddhi), and without attainment there is no true renown. In this world, there is no deeper root of lasting fame than brahmacarya—there is no austerity higher than it.
It does not address pralaya directly; it teaches an inner law of dharma: spiritual discipline (yoga) produces attainment (siddhi), and such attainment becomes the basis of enduring renown.
It frames reputation (yaśas) as grounded in self-mastery: a king gains lasting glory through disciplined conduct, and a householder preserves honor and stability through brahmacarya understood as regulated senses, fidelity, and restraint.
No vastu/temple rule is stated; the practical takeaway is preparatory—brahmacarya and yoga are presented as the highest tapas that empower successful ritual life and any sacred undertaking.