CC Antya 18.19

premāra vikāra varṇite cāhe yei jana
cānda dharite cāhe, yena hañā ‘vāmana’
Word for word: 
premāra — of ecstatic love of Kṛṣṇa; vikāra — transformations; varṇite — to describe; cāhe — wants; yei jana — which person; cānda dharite — to catch the moon; cāhe — he wants; yena — as if; hañā — being; vāmana — a dwarf.
Translation: 
One who wants to describe the transformations of ecstatic love of Kṛṣṇa is like a dwarf trying to catch the moon in the sky.