tabeta - then only; pāṇḍitya - learning; tomāra - your; ha-ibe - will become; sa-phala - successful; kṛṣṇera - of Lord Kṛṣṇa; svarūpa-līlā - the transcendental pastimes; varṇibā - you will describe; nirmala - without material contamination.

“Only if you follow the principles of Śrī Caitanya Mahāprabhu and His devotees will your learning be successful. Then you will be able to write about the transcendental pastimes of Kṛṣṇa without material contamination.