Demons means flesh-eaters. They are doing even, I mean to say drunkards, gamblers, women-hunters. These are the qualifications of the demons. Because demons means materialistic. That's all. And these four qualifications must be there in a materialistic man: women-hunter and drunkard and flesh-eater and gambler. Wherever you find these four principle, they are demons.
So Prahlāda Mahārāja himself was born of the demon family. He was . . . his all class friends are born of demon father. His country was demonic country, his family was demonic, and he became a great devotee. Of course, that is very long-time narration, but in our recent years, Haridāsa Ṭhākura, he was born of a brahmin . . . er, Muhammadan family, and Caitanya Mahāprabhu accepted.
These Gosvāmīs, Sanātana Gosvāmī , Rūpa Gosvāmī, they were, of course, originally they were brahmin . . . but they fell down on account of this association. And formerly, they accepted service. brahmin could not accept any service, and they accepted service of Muhammadan government. So immediately they were, what is called, ostracized from the brahmin society. They are not accepted in the society. They changed their name, Sākara Mallika and Dabira Khāsa. But Caitanya Mahāprabhu picked them up and made them gosvāmīns. Gosvāmīns means they are great teachers, guru, gosvāmī means. There are many instances—not one, but many thousands.