Anyone who is a sincere devotee of Krishna and who is rendering service by preaching His message is to be considered as hero. So you are all heroes of your country and your humanity. Hero means someone who others want to follow as example of the best type of person. So you all become like that, perfect examples of Krishna Consciousness heroes and heroines, and preach the message exactly as I have taught it to you very seriously and being fully convinced, and others will automatically come forward and join us. We shall all be like one great army of heroes for Lord Caitanya Mahaprabhu.
From Srila Prabhupada’s letter to Visakha — Mexico City 6 June, 1972