Srila Prabhupada very often used to speak that—“ Nobody like to speak what I say about that absolute truth. Without hundred percent submission unto the Lotus feet of Supreme Lord nobody can speak about that absolute truth”.
Due to the massive influence of Kali at present the topics of that Absolute is almost rare, nobody like to discuss about that absolute truth but Srila Prabhupada always wanted to advise us to attain absolute Harikatha and to avoid false Harikatha for the actual benefit of our Bhajan, because genuine Harikatha from a genuine source can give us full protection whereas false Harikatha from a false source can take us to hell. Apparently it seems both the same, but there is a gaping of infinity because pure Harikatha is aprakrita Shabda Brahama without the help of which we cannot cut our material bondage whereas false Harikatha from a false source can make our bondage more and more tight. Sri Gaudiya Vedanta tattva Acharya Srila Jiva Gosvamipada writing the following Siddhanta vicar in his sandarba—“ bakta saraga niraga divido parikirtita” It is the strict instruction of Srila Jiva Gosvamipad not to allow any kapat bakta ( speaker) to sit on the Vyasasan, because this can contaminate the whole system of Sampradaik Bhajan. Kapat bakta is saraga bakta. Saraga Bakta means full contamination of heart with material desire ( labha , puja , prathista, ect.) but Niraga Bakta means there is no contamination of any desire inside the heart of the Bakta which can help propagate pure devotional waves amoung those who are going to attain that Harikatha. Any saraga Bakta when speaking Harikatha ( ?) then this can get contaminated with the poison already there inside the heart of speaker, not only that but also on hearing that kind of contaminated katha common people can develop more and more bondage ( sickness ).
Gaura Hari Haribol