Paricaryātmakaṁ karma śūdra-karma svabhāva-jam (BG 18.44). Śūdra means they earn their livelihood by serving others. And in the Kali-yuga, in this age, ninety-nine percent or at least ninety percent, they live by serving others. Therefore it is said, kalau śūdra-sambhavaḥ: "In the Kali, in this age, almost everyone is śūdra." There is no brāhmaṇa, no kṣatriya, no vaiśya. Of course, there are vaiśyas. Factually, at the present moment the population are the vaiśyas and the śūdras. And there is fight, that your American nation, they are vaiśyas, and the Russians, they are śūdras. So there is always fight between the vaiśyas and śūdras. Actually, there is no brāhmaṇa or kṣatriyas. They are extinct. And because the brāhmaṇas and kṣatriyas are extinct, therefore social orders are in chaos. There is no brain; there is no good administration. That's all. Without kṣatriya, there cannot be any good administration, and without brāhmaṇa, there is no good brain. Therefore we pray to Kṛṣṇa, namo brahmaṇya-devāya go-brāhmaṇa-hitāya ca, kṛṣṇāya govindāya...
- namo brahmaṇya-devāya
- go-brāhmaṇa-hitāya ca
- jagad-dhitāya kṛṣṇāya
- govindāya namo namaḥ
So this is very important. We are worshiping, offering our respect to Kṛṣṇa, as brahmaṇya-deva. Brahmaṇya-deva means "the Lord who is worshiped by the brāhmaṇas." So Kṛṣṇa consciousness is not for the śūdras. Kṛṣṇa conscious... One who is elevated to the standard of becoming brāhmaṇa, they can become Kṛṣṇa conscious. But by the mercy of Lord Caitanya, every one comes to the stage of brahminical standard. Only to observe these four principles and chant Hare Kṛṣṇa, you are at once more than brāhmaṇa, Vaiṣṇava. Vaiṣṇava position is more than brāhmaṇa. So in this age the pāñcarātriki-vidhi is introduced because it is very difficult to find out whether a person is actually son of brāhmaṇa or higher caste. It is to be accepted that everyone is śūdra. It doesn't matter whether and what he is. But he should be given chance to become the Vaiṣṇava, whose position is more than a brāhmaṇa. That is the highest gift of Caitanya Mahāprabhu. He is claiming everyone to the highest stage of Vaiṣṇava.