कृष्णतद्भक्तकारुण्यमात्रलाभैकहेतुका ।
पुष्टिमार्गतया कैश्चिदियं रागानुगोच्यते ॥
kṛṣṇa-tad-bhakta-kāruṇya-mātra-lābhaika-hetukā |
puṣṭi-mārgatayā kaiścid iyaṁ rāgānugocyate ||
(Bhakti-rasāmṛta-sindhu: 1.2.309)
“Because the only cause for attaining it is simply the grace of Kṛṣṇa and his bhaktas, this rāgānugā [-bhakti] is called puṣṭi-mārga by some.”