Rūpa Gosvāmī came on the order of Caitanya Mahāprabhu to rejuvenate, re-excavate this land of Vṛndāvana. And they were engaged in the service of Lord Caitanya for preaching work. Whatever we are preaching now, it is based on the principles laid down by the Gosvāmīs. Narottama dāsa Ṭhākura has sung,
- rūpa-raghunātha-pade, haibe ākuti,
- kabe hāma bujhabo śrī-yugala-pīriti
The loving affairs of Rādhā and Kṛṣṇa, that is not ordinary material things as we conceive. Generally people are very much interested in painting picture of Rādhā-Kṛṣṇa's love. These pictures are very popular, because they think, "Kṛṣṇa is like us. He is after young girls. So He's a great support for us. We are also after young girls. So Kṛṣṇa has done, so we are doing that." So Kṛṣṇa affairs—different.