PURPORT

Vaisnavas are also Visnudutas because they carry out the orders of Krsna. Lord Krsna is very eager for all the conditioned souls rotting in this material world to surrender to Him and be saved from material pangs in this life and punishment in hellish conditions after death. A Vaisnava therefore tries to bring conditioned souls to their senses. Those who are fortunate like Ajamila are saved by the Visnudutas, or Vaisnavas, and thus they return back home, back to Godhead.