rādhā-kṛṣṇera līlā - the pastimes of Rādhā and Kṛṣṇa; ei - this is; ati - very much; gūḍhatara - more confidential; dāsya - of servitude; vātsalya-ādi - and of parental love, etc.; bhāve - in the moods; nā haya - is not; gocara - appreciated.

“The pastimes of Rādhā and Kṛṣṇa are very confidential. They cannot be understood through the mellows of servitude, fraternity or parental affection.