CC Antya 19.28

mahā-yogeśvara ācārya — tarajāte samartha
āmiha bujhite nāri tarajāra artha’
Word for word: 
mahā-yogeśvara — the greatest mystic; ācārya — Advaita Ācārya; tarajāte samartha — very expert in writing sonnets; āmiha — and yet I; bujhite — to understand; nāri — am not able; tarajāra — of the sonnet; artha — the meaning.
Translation: 
“Advaita Ācārya is a great mystic. No one can understand Him. He is expert in writing sonnets that even I Myself cannot understand.”