mora mukhe vakta tumi, tumi hao srota
atyanta rahasya, suna, sadhanera katha
mora mukhe—in my mouth; vakta—speaker; tumi—You are; tumi—You; hao—are; srota—the hearer; atyanta rahasya—extremely mysterious; suna—now please hear; sadhanera katha—the discussion of the process.
"Actually You are speaking through my mouth, and at the same time You are listening. This is very mysterious. Anyway, kindly hear the explanation by which the goal can be attained.
sravanam naiva kartavyam
sarpocchistam yatha payah
Thus quoting from Padma Purana, Srila Sanatana Gosvami warns that one should not hear anything about Krsna from an avaisnava, however great a mundane scholar he may be. Milk touched by the lips of a serpent has poisonous effects; similarly, talks about Krsna given by an avaisnava are also poisonous. However, because a Vaisnava is surrendered to the Supreme Personality of Godhead, his talks are spiritually potent. In the Bhagavad-gita (10.10) the Supreme Lord says,
tam yena mam upayanti te
"To those who are constantly devoted to worshiping Me with love, I give the understanding by which they can come to Me." When a pure Vaisnava speaks, he speaks perfectly. How is this? His speech is managed by Krsna Himself from within the heart. Srila Ramananda Raya accepts this benediction from Sri Caitanya Mahaprabhu; therefore he admits that whatever he was speaking was not derived from his own intelligence. Rather, everything was coming from Sri Caitanya Mahaprabhu. According to the Bhagavad-gita (15.15):
sarvasya caham hrdi sannivisto
mattah smrtir jnanam apohanam ca
vedais ca sarvair aham eva vedyo
vedanta-krd veda-vid eva caham
"I am seated in everyone's heart, and from Me come remembrance, knowledge and forgetfulness. By all the Vedas, I am to be known. Indeed I am the compiler of Vedanta, and I am the knower of the Vedas."
All intelligence emanates from the Supreme Personality of Godhead, the Supersoul within the heart of everyone. Nondevotees want to ask the Supreme Lord for sense gratification; therefore nondevotees come under the influence of maya, the illusory energy. A devotee, however, is directed by the Supreme Personality of Godhead and comes under the influence of yogamaya. Consequently there is a gulf of difference between statements made by a devotee and those made by a nondevotee.
Link to this page: https://prabhupadabooks.com/cc/madhya/8/200