Power of hearing devotees discuss sastra
“Hearing discussions among the devotees is the only means to receive the powerful message of the Supreme Personality of Godhead. For instance, Bhagavad-gītā has been well known all over the world for a very long time, especially in the Western world, but because the subject matter was not discussed by devotees, there was no effect…… The conclusion is that if one participates in a discussion of devotees, he is both materially and spiritually benefited.”
SB 4.21.19 purport