Real Preaching

Real preaching is through example. Speaking the philosophy without honestly being an example of the message falls into the category of karma-kanda according to Srila Bhaktisiddhanta. A proper devotee’s vacana (speech) should be in line with his pracara (behavior), and his sadacara (good behavior) ultimately is his real preaching. Transcendental knowledge cannot be taught or accepted mechanically. By engaging one’s senses in devotional activities, one begins to acquire causeless knowledge.

..from Reflections on Sacred Teachings - Volume Five: Srila Bhaktisiddhanta's  Sixty-four Principles for Community, Principle 23