The fact that Srila Prabhupada was able to make the subject matter of bhakti so easily accessible to almost anyone is proof that he was invested with Krishna-shakti. Krishna-shakti vina nahe tare pravartana: Unless one is invested with Krishna-shakti, he cannot deliver the Lord’s name to others and convince them to dedicate their lives to the chanting.
(Lecture- Srila Prabhupada's Vyasa Puja, Alma-ata 1995)