When Lord Caitanya was present, whenever He would go, wherever He would go and..., His attitude was dancing: "Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa..." And He was so beautiful and attractive that people would follow. Thousands and thousands people will follow, chanting Hare Kṛṣṇa. Even Lord..., Nawab Hussein Shah... And when He started this movement in Bengal He was a boy of twenty years old. So so many people were following. So Nawab Hussein Shah inquired his minister, "Who is this person, that He is chanting Hare Kṛṣṇa and so many people are following Him?" So the minister was Hindu. He thought that "He is Muhammadan king, so he may not like this movement." Therefore he wanted to hide it: "My Lord, you have misinformed. He is not very important. Some, I mean to say, people are crazy fellows. They are following. Not... A few only, not many." The Nawab replied, "No, I know it certainly, but you don't try to hide the facts. He must be a great personality. Otherwise so many people are following Him?" That was his remark.
Similarly, Lord Caitanya, wherever He went, that was... Sāṅgopāṅgāstra-pārṣadam: "always followed by many associates." These are the symptoms. And how to worship that Supreme Personality of Godhead, Kṛṣṇa, in this age? Yajñaiḥ saṅkīrtana-prāyair yajanti hi su-medhasaḥ: (SB 11.5.32) "This form of the Personality of Godhead is worshiped by the intelligent class of men." Su-medhasaḥ. Su means very good, and medhasaḥ means brain, brain substance. One who has got very good brain substance, they will understand this saṅkīrtana movement nicely. Just like in our India, especially in Bengal, sometimes they say a dull-brained man, "Oh, you have got cow dung within your brain. You have no brain substance." Actually a man becomes intelligent by the greater amount of brain substance. It is a psychological fact.