ei - this; ślokera - of the verse; artha - the meaning; kahi - I relate; saṅkṣepera - of conciseness; sāra - the pith; bhaktera - of the devotee; icchāya - by the desire; kṛṣṇera - of Lord Kṛṣṇa; sarva - all; avatāra - incarnations.

The essence of the meaning of this verse is that Lord Kṛṣṇa appears in all His innumerable eternal forms because of the desires of His pure devotees.