The next door is a karmī's house, and this house is a temple. What is the difference? The difference is: in this house everyone is engaged to fulfill Kṛṣṇa's desire, and the other house, everyone is engaged in fulfilling his own desire. Therefore it is temple, and that is house. Otherwise, from the external feature, where is the difference? The same stone, the same wood, the same plant, the same land, the same kitchen—everything is same, and the business is the same. But here the business is to satisfy Kṛṣṇa, and the other houses, the business is to satisfy one's own senses. That is the difference between kāma and prema. When you try to fulfill the desires of Kṛṣṇa, that is prema. And when you want to fulfill your own desires, that is called kāma. There is no other.
Just like the gopīs. The gopīs are going to Kṛṣṇa, being captivated by the beauty of Kṛṣṇa, just like a young girl becomes captivated by seeing a very nice boy, or a nice boy is captivated to see the beauty of a girl. These are sense gratification. There is no prema; that is kāma. But the gopīs, they are going to Kṛṣṇa, superficially the same thing, like the young girls are going to a young boy, but they are going for Kṛṣṇa's satisfaction, not for their own satisfaction. That is the sublime. Therefore gopīs are so held in estimation even by Caitanya Mahāprabhu. Ramya kecid upāsanā vraja-vadhu-vargabhir ya kalpita: "There is no better type of upāsanā, worship, than it was conceived by the gopīs."