In this Hari-bhakti-vilāsa Śrī Sanātana Gosvāmī gives definite instructions that by proper initiation by a bona fide spiritual master one can immediately become a brāhmaṇa. In this connection he says:
yathā kāñcanatāṁ yāti kāṁsyaṁ rasa-vidhānataḥ
tathā dīkṣā-vidhānena dvijatvaṁ jāyate nṛṇām
“As bell metal is turned to gold when mixed with mercury in an alchemical process, so one who is properly trained and initiated by a bona fide spiritual master immediately becomes a brāhmaṇa.”
(Sri Caitanya Caritamrta-----1:7:47-----purport).

According to the Vedic system there are four castes—the brāhmaṇas, kṣatriyas, vaiśyas and śūdras—and below them are the pañcamas (literally, “members of the fifth group”), who are lower than the śūdras. The higher castes—the brāhmaṇas, the kṣatriyas and even the vaiśyas—were known as brāhmaṇa-saj-jana. The brāhmaṇas especially were known as saj-jana, or respectable gentlemen who guided the entire society. If there were disputes in the village, people would approach these respectable brāhmaṇas to settle them. Now it is very difficult to find such brāhmaṇas and saj-janas, and thus every village and town is so disrupted that there is no peace and happiness anywhere. To revive a fully cultured civilization, the scientific division of society into brāhmaṇas, kṣatriyas, vaiśyas and śūdras must be introduced all over the world. Unless some people are trained as brāhmaṇas, there cannot be peace in human society.
(Sri Caitanya Caritamrta-----1:17:42-----purport).

The important members of ISKCON should give careful attention to our Dallas school, where children are being taught Sanskrit and English to become perfectbrāhmaṇas. If they are actually trained as perfect brāhmaṇas, they can save society from rogues and ruffians; indeed, people can live happily under the protection of qualified brāhmaṇas. Therefore the Bhagavad-gītā (4.13) gives special stress to the division of society (cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ). Unfortunately some people are now claiming to bebrāhmaṇas simply by birthright, with no qualifications. Therefore the entire society is in chaos.
(Sri Caitanya Caritamrta-----1:17:103-----purport).

Higher education is not meant for everyone. Only selected individuals trained in brahminical culture should be allowed to pursue a higher education. Educational institutions should not aim to teach technology, for a technologist cannot properly be called educated. A technologist is a śūdra; only one who studies the Vedas may properly be called a learned man (paṇḍita). The duty of a brāhmaṇa is to become learned in the Vedic literature and teach the Vedic knowledge to other brāhmaṇas. In our Kṛṣṇa consciousness movement we are simply teaching our students to become fit brāhmaṇas and Vaiṣṇavas. In our school at Dallas, the students are learning English and Sanskrit, and through these two languages they are studying all our books, such as Śrīmad-Bhāgavatam, Bhagavad-gītā As It Is and The Nectar of Devotion. It is a mistake to educate every student as a technologist. There must be a group of students who become brāhmaṇas. Without brāhmaṇas who study the Vedic literature, human society will be entirely chaotic.
(Sri Caitanya Caritamrta-----1:17:253-----purport).

According to Śrī Caitanya Mahāprabhu’s intentions, pṛthivīte āche yata nagarādi-grāma sarvatra pracāra haibe mora nāma. Śrī Caitanya Mahāprabhu’s cult must be preached all over the world. This does not mean that people should take to His teachings and remain śūdras or caṇḍālas. As soon as one is trained as a pure Vaiṣṇava, he must be accepted as a bona fide brāhmaṇa. This is the essence of Śrī Caitanya Mahāprabhu’s instructions in this verse.
(Sri Caitanya Caritamrta-----2:8:128-----purport).

According to smārta-brāhmaṇas, a person not born in a brāhmaṇa family could not be elevated to the position of a brāhmaṇa. Sanātana Gosvāmī, however, says in the Hari-bhakti-vilāsa (2.12) that anyone can be elevated to the position of a brāhmaṇa by the process of initiation.
yathā kāñcanatāṁ yāti kāṁsyaṁ rasa-vidhānataḥ
tathā dīkṣā-vidhānena dvijatvaṁ jāyate nṛṇām
“As bell metal is turned to gold when mixed with mercury in an alchemical process, so one who is properly trained and initiated by a bona fide spiritual master immediately becomes a brāhmaṇa.”
There is a difference between the smārta process and the gosvāmī process. According to the smārta process, one cannot be accepted as a brāhmaṇa unless he is born in a brāhmaṇafamily. According to the gosvāmī process, the Hari-bhakti-vilāsa and the Nārada-pañcarātra, anyone can be a brāhmaṇa if he is properly initiated by a bona fide spiritual master.
(Sri Caitanya Caritamrta-----2:23:105-----purport).

According to religious life, society is divided into four social divisions—brāhmaṇa, kṣatriya, vaiśya and śūdra—and four spiritual divisions—brahmacarya, gṛhastha, vānaprastha and sannyāsa. One needs to be trained to become a brāhmaṇa, kṣatriya, vaiśya or śūdra, just as one is trained to become an engineer, doctor or lawyer. Those who are properly trained can be considered human beings; if one is not trained socially and spiritually—that is, if one is uneducated and unregulated—his life is on the animal platform. Among animals there is no question of spiritual advancement. Spiritual life can be attained by proper training-either by following the principles of varṇa and āśrama or by being directly trained in the bhakti school by the methods of śravaṇaṁ kīrtanaṁ viṣṇoḥ smaraṇaṁ pāda-sevanam/ arcanaṁ vandanaṁ dāsyaṁ sakhyam ātma-nivedanam [SB 7.5.23]. Without being trained, one cannot be sukṛtī, auspicious.
(Sri Caitanya Caritamrta-----2:24:94-----purport).

In the Garuḍa Purāṇa it is said:
bhaktir aṣṭa-vidhā hy eṣā yasmin mlecche ‘pi vartate
sa viprendro muni-śreṣṭhaḥ sa jñānī sa ca paṇḍitaḥ
“Even if one is born a mleccha, if he becomes a devotee he is to be considered the best of the brāhmaṇas and a learned paṇḍita.” Similarly, the Tattva-sāgara says:
yathā kāñcanatāṁ yāti kāṁsyaṁ rasa-vidhānataḥ
tathā dīkṣā-vidhānena dvijatvaṁ jāyate nṛṇām
“As bell metal is turned to gold when mixed with mercury in an alchemical process, so one who is properly trained and initiated by a bona fide spiritual master becomes a brāhmaṇaimmediately.” All this evidence found in the revealed scriptures proves that according to the Vedic version, a Vaiṣṇava is never to be considered an abrāhmaṇa, or non-brāhmaṇa. A Vaiṣṇava should not be thought to belong to a lower caste even if born in a mleccha or yavana family. Because he has become a devotee of Lord Kṛṣṇa, he has become purified and has attained the stage of brāhmaṇa (dvijatvaṁ jāyate nṛṇām).
(Sri Caitanya Caritamrta-----3:16:30-----purport).

In this age of Kali the people want their own government, because the kings have become corrupt. Formerly it was not like that. The sons of kings were trained under the guidance of a good brāhmaṇa-ācārya just as the Pāṇḍavas and the Kauravas were put under the instruction of the qualified brāhmaṇa professor Śrī Droṇācārya. Princes were rigidly trained in politics, economics, the military arts, ethics and morality, the sciences, and, above all, devotional service to the Lord. Only after such goodtraining were the princes allowed to be enthroned. When such a prince became king, then too he was guided by the advice of good brāhmaṇas. Even in the Middle Ages, Mahārāja Candragupta was guided by the learned brāhmaṇa Cāṇakya Paṇḍita.
(Light of the Bhagavata).

Sex life without the purificatory process of Kṛṣṇa consciousness is merely the seed-giving process of the śūdras or the animals. Kṛṣṇa consciousness is therefore the best process of purification. By this process everyone can come to the platform of a Vaiṣṇava, which includes having all the qualifications of a brāhmaṇa. The Vaiṣṇavas are trained to become freed from the four kinds of sinful activities—illicit sex, indulgence in intoxicants, gambling and eating animal foods. One cannot be on the brahminical platform without having these preliminary qualifications, and without becoming a qualified brāhmaṇa, one cannot become a pure devotee.
(Krsna Book).

A real brāhmaṇa, therefore, does not endeavor for material perfection; rather, he approaches a bona fide spiritual master to accept orders from him. A spiritual master’s qualification is that he is brahma-niṣṭha, which means that he has given up all other activities and has dedicated his life to working only for the Supreme Personality of Godhead, Kṛṣṇa. When a bona fide student approaches a bona fide spiritual master, he submissively prays to the spiritual master, “My dear lord, kindly accept me as your student and train me in such a way that I will be able to give up all other processes of self-realization and simply engage in Kṛṣṇa consciousness, devotional service.”
(Krsna Book).