In the human society, in the civilized human society, there is acceptance of religious principle. Maybe it is Hindu religion or Muslim religion or Christian religion or Buddha religion, but there is some religion. A civilized society is not without religion. Without religion means animal society. The animals, they have no religion. Cats and dogs, they have no church, no temple that they have to go. It is for the human beings. Therefore śāstra says that dharmeṇa hīnāḥ paśubhiḥ samānāḥ. If in the human society there is no culture of religion, then it is animal society. It is not human society.
So this human society should be divided into eight divisions. That is first-class human society. Just like any organization, any establishment, there are divisions of labor: the directing board, board of directors there are, then the secretarial board, then ordinary clerks, then menial, then workers. There must be division; otherwise it is chaotic. Nowhere you'll find without division it is going on very smoothly. There must be division. Therefore Kṛṣṇa says in the Bhagavad-gītā, cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ (BG 4.13). It is ordered by God that there should be four divisions for the materialistic condition of life and four divisions for spiritual upliftment. So there must be the brāhmaṇa, cātur-varṇyaṁ mayā sṛṣṭam. Varṇa means four divisions of society. Varṇa means class. It has been taken now as caste; but actually class. Class is not caste. Caste, of course. . . Throughout the whole world there is no such thing as caste. But anyway, in India there is caste. But Kṛṣṇa says that cātur-varṇyaṁ mayā sṛṣṭam (BG 4.13): "Four divisions of classes I have created—brāhmaṇa, kṣatriya, vaiśya, śūdra." Who is a brāhmaṇa? That is also described in the Bhagavad-gītā: satya, śama, dama, titikṣā, ārjava, āstikyam, jñāna, vijñānam, so many qualifications required to become a brāhmaṇa. Not that because I was born in a brāhmaṇa family. This is discussed in Śrīmad-Bhāgavatam, that to take birth in a brāhmaṇa family is not all. You must be qualified, śamo damas titikṣā. That is required. The Indian culture has failed at the present moment because instead of considering the qualification, they accept only the birth: "The birth in a brāhmaṇa family makes a man a brāhmaṇa." No. That is not the śāstric injunction. Qualification. There must be qualification.