Prahlāda Mahārāja says, brahmā, sarve hy amī vidhi-karās tava sattva-dhāmno (SB 7.9.13): "They are all Your servants. These demigods, they are appointed servants, and they are not disturbing like us. And Your incarnation is specially meant for them, specially meant . . ." Because Kṛṣṇa says in the Bhagavad-gītā, paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8).
Actually He incarnates to protect these, I mean to say, faithful persons who are devoted to Kṛṣṇa. That is His main business. And vinā . . . and the sideways side, I mean to say, killing all these demonic per . . . just like Hiraṇyakaśipu, he's demon, and Prahlāda is devotee. Lord Nṛsiṁha's appeared for two business: for killing Hiraṇyakaśipu and giving protection to Prahlāda.
So Prahlāda Mahārāja says that "Actually Your appearance, Your incarnation, is meant for these devotees, these demigods." Demigod means devotees. There are two classes of men in the world. One class is demigod. Who are demigods? Those who are Vaiṣṇavas, they are demigods. Demigod does not mean that something extraordinary.
Anyone who is Vaiṣṇava, devotee of the Supreme Lord, he is demigod. That is the statement of Vedic literature. Viṣṇu-bhakto bhaved daivaḥ.
Daiva. Daiva means devatā, demigod. Asuras tad-viparyayaḥ (Padma Purāṇa)
And those who are atheistic demons, they are just the opposite. They are never devotee.
So there are two classes of men in this world. Sometimes the number, or the proportion, may be greater, this side or that . . . but in this material world there is never . . . the proportion of the demigods, or Vaiṣṇavas, is never greater. They are very few, always. You cannot expect that the whole world, whole population of the world, will become Vaiṣṇava. That is not possible.