CC Ādi 1.101

eka adbhuta — sama-kāle doṅhāra prakāśa
āra adbhuta — citta-guhāra tamaḥ kare nāśa
Synonyms: 
eka — one; adbhuta — wonderful thing; sama-kāle — at the same time; doṅhāra — of both; prakāśa — the manifestation; āra — the other; adbhuta — wonderful thing; citta-guhāra — of the core of the heart; tamaḥ — darkness; kare — do; nāśa — destruction.
Translation: 
The first wonder is that both brothers appear simultaneously, and the other is that They illuminate the innermost depths of the heart.