The conditions for hearing the transcendental message of the Absolute Truth are set forth herein. The first condition is that the audience must be very sincere and eager to hear. And the speaker must be in the line of disciplic succession from the recognized acarya. The transcendental message of the Absolute is not understandable by those who are materially absorbed. Under the direction of a bona fide spiritual master, one becomes gradually purified. Therefore, one must be in the chain of disciplic succession and learn the spiritual art of submissive hearing.

(SB 1.1.13, purport)