Vaishnava Samhita. Premanidhi Charitam. Vol III Book VI Chp 19 Shlokas 8 - 10

यथा ददाति द्विरदः स्वहस्तेनैव श्रुङ्खलाम् |
आत्मबन्धकरीं भक्तिं ददाति स्वयमच्युतः ||
बद्धः प्रणयपाशेन भक्तस्य वशमागतः |
दास्यं करोति सततं स्वामी त्रिजगतामपि ||
एवमेव हि सौलभ्यं व्यक्तं कृष्णस्य दृश्यते |
तस्माद्भागवताः सर्वे वर्तन्ते सुखजीविनः ||   

The elephant himself hands over to the mahout the chain that binds him. In the same way Shri Achyuta grants an individual, bhakti that is capable of binding Him. Shri Bhagavan is the Lord of all the three worlds. Yet He gets bound by bhakti and remains in servitute for the sake of His own devotees. The modesty of Shri Bhagavan manifests itself thus. As a result all the bhaktas lead a comfortable and peaceful life.