Devamrita Swami: In Atlanta, Prabhupada began his lectures not by singing Jaya Radha-Madhava but by singing parama koruna, pahu dui jana, nitai gauracandra in a very slow, moving melody. The temple was not large so it provided an intimate setting, and there Prabhupada gave one particular lecture which I’ll always remember. The lecture only lasted three minutes. I was sitting right in front of him, and he began to explain how Lord Caitanya and Lord Nityananda are so merciful: “They are giving Krishna although no one knows who is Krishna.” And he urged, “Take shelter of Lord Caitanya.” As he was speaking like that, his voice full of wonder and devotion, just two minutes into the lecture his voice began to crack. And as I sat in front of him, I saw the tears shoot from his eyes like coming from a syringe. Then Prabhupada stopped speaking and without another word climbed off the vyasasan and left, and devotees who were with him when he went to his quarters said he didn’t speak at all about what had happened.
Reference: Remembrances by Yadubara Das- Folio Vedabase