But all these are acquirable by the piety accumulated in a pristine birth—so the pious obtain them both. O great king, all men desire to be great—but this greatness is not acquired by exertion, it is the destiny that confers it upon men. O lord, kingdoms are acquired by fate, even by the stupid, the ignorant, the cowardly and those who are ignorant of the science of government. Therefore, he, who longs for greatness, should try to acquire piety.
In plain words: Prahlada says wealth and kingdoms come from good deeds done in past lives, not from hard effort alone. Even foolish or cowardly people sometimes become kings by fate. So anyone who wants greatness should try to be good and devoted.