Prabhupada's lecture - Śrīmad-Bhāgavatam 1.7.11 - Vṛndāvana, September 10, 1976
That madness wanted. Yugāyitaṁ nimeṣeṇa: one moment appears to be one yuga. One yuga means twelve years. So yugāyitaṁ nimeṣeṇa cakṣuṣā prāvṛṣāyitam. Crying. There is tears in the eyes like the torrents of rain. Yugāyitaṁ nimeṣeṇa cakṣuṣā... Śūnyāyitaṁ jagat sarvam. "I feel the whole world is vacant." Why? Govinda-viraheṇa me. This madness is wanted. Without Govinda, that madness. So that madness (was) fully exhibited in Vṛndāvana by the gopīs. They were mad after Kṛṣṇa. When Kṛṣṇa left Vṛndāvana, went to Mathurā, they became so mad that they had no other business than cakṣuṣā prāvṛṣāyitam, simply crying torrents of rain. That is wanted. That is Vṛndāvana life. Not that seeking after sex in Vṛndāvana. That is... That means such person will have to take birth as monkey next life. Monkey.
Because they have taken shelter of Vṛndāvana, and still they're indulging, monkey's business, so they have to... It is Kṛṣṇa's mercy. Tat te 'nukampāṁ su-samīkṣamāṇaḥ [SB 10.14.8]. In Vṛndāvana the land, transcendental land, that will not go in vain. But these persons who are indulging unnecessary sex life in Vṛndāvana, they'll have to take birth as monkeys in Vṛndāvana, and then next life they'll be liberated. So otherwise, why in Vṛndāvana the monkeys? They are also devotees, but they could not proceed nicely. So animal life means stopping sinful activities, and whatever sinful reaction is there in one life finished. We should be very, very careful. Dhāma, dhāma-aparādha. In the dhāma... In other places if you chant Hare Kṛṣṇa, the result of such chanting will be increased thousand times if you chant in Vṛndāvana. Similarly, in other place, the sinful activities, if you commit that sinful activity in Vṛndāvana, then it will be thousand times increased. So we have to be very careful.