तपसा च सुतप्तेन यमेन नियमेन च । मन्वन्तरेषु पुत्रत्वमेवमेव प्रवर्तक:
tapasā ca sutaptena yamena niyamena ca | manvantareṣu putratvam evam eva pravartakaḥ ||
Vaiśampāyana said: By austerity well-performed, and by the disciplines of restraint (yama) and observance (niyama), one repeatedly attains the state of sonship across successive Manvantaras—thus does this causal principle continue to operate in the same way again and again.
वैशम्पायन उवाच
Ethical self-discipline—tapas supported by yama and niyama—functions as a continuing causal force, shaping one’s destiny and enabling repeated attainment of desired relational status (here, sonship) across cosmic cycles.
Vaiśampāyana states a general principle within the Śānti Parva’s instruction: through sustained ascetic and moral practice, beings secure particular outcomes that recur even across different Manvantaras, emphasizing continuity of karmic causation over vast time.