Jayadvaita Swami: I remember one lecture Prabhupada gave there, he began saying om ajnana-timirandhasya... And then he just said, "Timirandhasya," and he just lectured on that. He had his Bhagavatam open to lecture on the Bhagavatam verse, but he didn't lecture on that verse. He lectured on om ajnana-timirandhasya, he didn't go beyond that, the importance of the spiritual master.