Srila Prabhupada - Vedic Teachings

  „So far as your duty is concerned, you are doing your best. That is your spiritual qualification. The best qualification for a Vaisnava is to act sincerely, and to his best capacity, for the service of Krishna. Otherwise, Krishna is so great, and we are so small, there is no question of our giving any service to Krishna. But Krishna is so great, and He is so greatly merciful, that any small service we offer to Him in devotion and sincerity He will accept. Krishna does not require anyone's help or service, but if we serve Him, even in a very small capacity, He will accept it. So that is our only hope. One who can show the whole cosmic manifestation within the hole of His mouth, what service can we render unto Him? So the best thing is to employ all of our talents and energies in His service. That will help us to progress.” (Srila Prabhupada's letter to  Upendra —Los Angeles 24 June, 1969)  

  „ Of course, I am using you already in the service of the Lord, and personally I cannot utilize your service. So whatever I demand from you, it is for Krishna's sake. Personally I am humble servant of Krishna as you are also, but I am deputed to accept your service just to transfer it to Krishna as via media. I shall try to do this service to you and Krishna throughout my life, and I am so proud to have such assistants as you are to help me in my mission to push on the Krishna Consciousness Movement.”   (Srila Prabhupada's letter to: Dayananda—Allston, Mass     1 May, 1969)