1. Hearing from Mayavadis means spiritual death

    One who comes in touch with the Mayavadi… Mayavadi means one who thinks Krsna is also in maya. That is called Mayavadi. "Krsna's body is also maya." They are called Mayavadi. So Caitanya Mahaprabhu warns that mayavadi-bhasya sunile haya sarva-nasa: anyone who listens to the commentary of the Mayavadi philosopher, then his fate is doomed. He is finished. He will never be able to understand bhakti philosophy. It is so poisonous.

    Therefore Sanatana Gosvami has warned not to hear from avaisnava about Krsna. There is a very famous Bhagavata reader in Bombay. He is a pakka avaisnava. But he is going on, and he is infusing poison — those who are hearing him, they will never be able to understand what is Krsna. They will never be able. It is so poisonous.

    Therefore Sanatana Gosvami says, avaisnava-mukhodgirnam putam hari-kathamrtam, na sravanam na kartavyam: "Avaisnava, who is not Vaisnava, who is not devotee, if he speaks about Bhagavad-gita, Srimad-Bhagavatam, nonsense…" He will speak nonsense. So it is not good.

    Avaisnava-mukhodgirnam putam hari-kathamrtam, sravanam na kartavyam: "You should never hear." On principle you should avoid hearing from such rascals. This is the injunction of Sanatana Gosvami. "Why? He is speaking Bhagavad-gita, Srimad-Bhagavatam. Why one should not hear? Bhagavad-gita is very nice." That's all right. He gives the example, sarpocchistam payo
    yatha. Milk… Everyone knows milk is very good food. But if it is touched by the lip of a serpent, then it is finished. Then it is finished. He will die. If you take such milk, then your destiny is to death.

    Srila Prabhupada, Srimad-Bhagavatam 3.26.30 — January 7, 1975, Bombay