Prabhupāda: But practically He started this saṅkīrtana movement vigorously from the age of 15 years. But when He was 20 years old, when the movement took very nice appearance, the brāhmaṇas complained. So this movement was about 20 years old when... Then renunciation...
Hayagrīva: He's 24 now.
Prabhupāda: Yes. Renunciation. So one day it so happened that instead of chanting Hare Kṛṣṇa, Lord Caitanya was chanting, "Gopī, gopī, gopī, gopī, gopī," instead of chanting "Kṛṣṇa Kṛṣṇa." So He had a small school. The brāhmaṇas, generally they keep a small school which is called catuṣpaṭhī. (spells out) C-c-h-a-a-t-u-s-p-a-t-h-i. Catuṣpaṭhī, catuṣpaṭhī means a school where up to the four Vedas are taught. Grammar and religion and everything is taught there. In every village that was system. The brāhmaṇas should keep up a school like that. Students were all almost they were also of the same age. Some of them were fifteen years old, sixteen years old. So students came and saw Lord Caitanya was chanting "Gopī gopī," so they objected. They said, "Oh, why You are chanting 'gopī gopī'? Why should You not chant 'Kṛṣṇa'? 'Hare Kṛṣṇa'?"