The gopis or cowherd girlfriends of Krsna underwent tremendous penances in their previous lives to attain Krsna as their husband. Similarly, in Srimad-Bhagavatam, Sukadeva Gosvami says that those boys who were playing with Krsna had undergone great penances and austerities in their previous lives in order to acquire Krsna as a playmate. Thus the playmates, associates and wives of Krsna are not ordinary living entities. Because we have no idea of Krsna consciousness, we take His activities as triflings, but actually they are sublime. All perfection of our desires is there; whatever desires we have constitutionally will be perfectly fulfilled when we are in Krsna consciousness.

From “Raja-vidya” by Srila Prabhupada