paśūḿś cārayator gopais
tad-vane rāma-kṛṣṇayoḥ
gopa-rūpī pralambo 'gād
asuras taj-jihīrṣayā
pasun -- the animals; carayatoh -- while the two of Them were herding; gopaih -- along with the cowherd boys; tat-vane -- in that forest, Vrindavana; rama-krishnayoh -- Lord Rama and Lord Krishna; gopa-rupi -- assuming the form of a cowherd boy; pralambah -- Pralamba; agat -- came; asurah -- the demon; tat -- Them; jihirshaya -- with the desire of kidnapping.
Having described how Krishna and Balarama acted just like ordinary boys, Sukadeva Gosvami will now reveal one of the Lord's transcendental pastimes that is beyond the range of human activity. According to Srila Visvanatha Cakravarti Thakura, the demon Pralamba disguised himself as a particular cowherd boy who on that day had remained at home with duties to perform.