However expert one may be, he can never describe the glories of the Lord adequately. Nonetheless, those engaged in glorifying the activities of the Lord should try to do so as far as possible. Such an attempt will please the Supreme Personality of Godhead. Lord Caitanya has advised all His followers to go everywhere and preach the message of Lord Kṛṣṇa. Since this message is essentially Bhagavad-gītā, the preacher’s duty is to study Bhagavad-gītā as it is understood by disciplic succession and explained by great sages and learned devotees. One should speak to the general populace in accordance with one’s predecessors — sādhu, guru and śāstras. This simple process is the easiest method by which one can glorify the Lord. Devotional service, however, is the real method, for by devotional service one can satisfy the Supreme Personality of Godhead with just a few words. Without devotional service, volumes of books cannot satisfy the Lord. Even though preachers of the Kṛṣṇa consciousness movement may be unable to describe the glories of the Lord, they can nonetheless go everywhere and request people to chant Hare Kṛṣṇa.