Here Śukrācārya is figuratively described as the husband of another she-goat. This indicates that the relationship between husband and wife in any society, whether higher or lower than human society, is nothing but the same relationship between he-goat and she-goat, for the material relationship between man and woman is one of sex. Yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham. Śukrācārya was an ācārya, or expert, in family affairs, which involve the transfer of semen from he-goat to she-goat. The words kaścid ajā-svāmī expressly indicate herein that Śukrācārya was no better than Yayāti, for both of them were interested in family affairs generated by śukra, or semen. Śukrācārya first cursed Yayāti to become old so that he could no longer indulge in sex, but when Śukrācārya saw that Yayāti’s emasculation would make his own daughter a victim of punishment, he used his mystic power to restore Yayāti’s masculinity. Because he used his power of mystic yoga for family affairs and not to realize the Supreme Personality of Godhead, this exercise in the magic of yoga was no better than the affairs of he-goats and she-goats. Yogic power should properly be used to realize the Supreme Personality of Godhead. As the Lord Himself recommends in Bhagavad-gītā (6.47):

yoginām api sarveṣāṁ
 mad-gatenāntarātmanā
śraddhāvān bhajate yo māṁ
 sa me yuktatamo mataḥ

“Of all yogīs, he who always abides in Me with great faith, worshiping Me in transcendental loving service, is most intimately united with Me in yoga and is the highest of all.”