Thus You descend as an incarnation to remove the burden of the world and to benefit Your friends, especially those who are Your exclusive devotees and are constantly rapt in meditation upon You.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तथायं चावतारस्ते भुवो भारजिहीर्षया । स्वानां चानन्यभावानामनुध्यानाय चासकृत्
tathāyaṃ cāvatāraste bhuvo bhārajihīrṣayā | svānāṃ cānanyabhāvānāmanudhyānāya cāsakṛt
SB 1.7.25