ācambite - suddenly; eka gopa - one cowherd boy; vamśī - flute; bājāila - blew; śuni' - hearing; mahāprabhura - of Śrī Caitanya Mahāprabhu; mahā-prema-āveśa - absorption in great ecstatic love; haila - there was.

Suddenly a cowherd boy blew on his flute, and immediately the Lord was struck with ecstatic love.