People of this world who are proud of their own aristocratic birth attack the pure Vaisnava… Thus they commit offenses. The solution to the problem is to establish the order of daiva-varnāśrama-dharma—something you have started doing: you should know that to be the real service to the Vaisnava. Because pure devotional conclusions are not being preached, all kinds of superstitions and bad concepts are being called devotion by such pseudo sampradāyas as sahajiya and ativādi.
Please always crush these anti-devotional concepts by preaching pure devotional conclusions and by setting an example… Please try very hard to make sure that the service to Sri Māyāpur will become a permanent thing. The real service to Sri Māyāpur can be done by acquiring printing presses, distributing devotional books, and sankirtana-preaching. Please do not neglect to serve Sri Māyāpur or to preach for the sake of your own reclusive bhajana. When I am not present any, more, please take care to serve Sri Māyāpur dhāma which is so dear to you. This is my special instruction to you.
I had a special desire to preach the significance of such books as Srimad-Bhagavatam, Şat-Sandarbha, and Vedānta Darśana. You have to accept that responsibility. Sri Māyāpur will prosper if you establish an educational institution there. Never make any effort to collect knowledge or money for your own enjoyment. Only to serve the Lord will you collect these things.
signed Kedarnātha Datta Bhaktivinoda