When Krishna becomes our life and soul, then preaching will be our life and soul; then we will be devotees. Every other form of striving is secondary. Srila Prabhupada gave such a wonderful, merciful opportunity to make preaching our life and soul. Devotees can have access to such superior pleasure when they preach. Never turn your back on an opportunity to tell someone about Krishna. That is our most important duty.
(SB 7.6.25 Boston, October 1995)