Vishnupurana 2.3.25

2.3.25

karmāṇy asaṃkalpitatatphalāni saṃnyasya viṣṇau paramātmarūpe
avāpya tāṃ karmamahīm anante tasmiṃl layaṃ ye tv amalāḥ prayānti //

In the Bhárata-varsha it is that the succession of four Yugas, or ages, the Krita, the Treta, the Dwápara, and Kali, takes place; that pious ascetics engage in rigorous penance; that devout men offer sacrifices; and that gifts are distributed; all for the sake of another world. In Jambu-dwípa, Vishńu, consisting of sacrifice, is worshipped, as the male of sacrificial rites, with sacrificial ceremonies: he is adored under other forms elsewhere. Bhárata is therefore the best of the divisions of Jambu-dwípa, because it is the land of works: the others are places of enjoyment alone. It is only after many thousand births, and the aggregation of much merit, that living beings are sometimes born in Bhárata as men. The gods themselves exclaim, "Happy are those who are born, even from the condition of gods, as men in Bhárata-varsha, as that is the way to the pleasures of Paradise, or the greater blessing of final liberation. Happy are they who, consigning all the unheeded rewards of their acts to the supreme and eternal Vishńu, obtain existence in that land of works, as their path to him. We know not, when the acts that have obtained us heaven shall have been fully recompensed, where we shall renew corporeal confinement; but we know that those men are fortunate who are born with perfect faculties in Bhárata-varsha."