Bhagavatapurana 1.7.25

1.7.25

tathāyaṃ cāvatāraste bhuvo bhārajihīrṣayā /
svānāṃ cānanyabhāvānām anudhyānāya cāsakṛt //

25. Similarly, this *avatara* of Thine has been made to lighten the burden of the earth and to be the object of constant contemplation for Thine own people and for those devotees that have set their heart on Thee alone.