CC Antya 4.84

tabe sanātana kahe, — “tomāke namaskāre
tomāra gambhīra hṛdaya ke bujhite pāre?
Word for word: 
tabe — at that time; sanātana kahe — Sanātana Gosvāmī said; tomāke namaskāre — I offer my respectful obeisances unto You; tomāra — Your; gambhīra — deep; hṛdaya — heart; ke — who; bujhite pāre — can understand.
Translation: 
At that time Sanātana Gosvāmī said to Śrī Caitanya Mahāprabhu, “I offer my respectful obeisances unto You. No one can understand the deep ideas You plan within Your heart.