While the Lord was camping at Vārāṇasī, Sanātana Gosvāmī also arrived after retiring from office. He was formerly one of the state ministers in the government of Bengal, then under the regime of Nawab Hussain Shah. He had some difficulty in getting relief from the state service, for the Nawab was reluctant to let him leave. Nonetheless he came to Vārāṇasī, and the Lord taught him the principles of devotional service. He taught him about the constitutional position of the living being, the cause of his bondage under material conditions, his eternal relation with the Personality of Godhead, the transcendental position of the Supreme Personality of Godhead, His expansions in different plenary portions of incarnations, His control of different parts of the universe, the nature of His transcendental abode, devotional activities, their different stages of development, the rules and regulations for achieving the gradual stages of spiritual perfection, the symptoms of different incarnations in different ages, and how to detect them with reference to the context of revealed scriptures.
The Lord's teachings to Sanātana Gosvāmī form a big chapter in the text of Śrī Caitanya-caritāmṛta, and to explain the whole teachings in minute details will require a volume in itself. These are treated in detail in our book Teachings of Lord Caitanya.
At Mathurā, the Lord visited all the important places; then He reached Vṛndāvana. Lord Caitanya appeared in the family of a high-caste brāhmaṇa, and over and above that as sannyāsī He was the preceptor for all the varṇas and āśramas. But He used to accept meals from all classes of Vaiṣṇavas. At Mathurā the Sanoḍiyā brāhmaṇas are considered to be in the lower status of society, but the Lord accepted meals in the family of such a brāhmaṇa also because His host happened to be a disciple of the Mādhavendra Purī family.
At Vṛndāvana the Lord took bath in twenty-four important bathing places and ghāṭas. He traveled to all the twelve important vanas (forests). In these forests all the cows and birds welcomed Him, as if He were their very old friend. The Lord also began to embrace all the trees of those forests, and by doing so He felt the symptoms of transcendental ecstasy. Sometimes He fell unconscious, but He was made to regain consciousness by the chanting of the holy name of Kṛṣṇa. The transcendental symptoms that were visible on the body of the Lord during His travel within the forest of Vṛndāvana were all unique and inexplicable, and we have just given a synopsis only.
Some of the important places that were visited by the Lord in Vṛndāvana were Kāmyavana, Ādīśvara, Pāvana-sarovara, Khadiravana, Śeṣaśāyī, Khela-tīrtha, Bhāṇḍīravana, Bhadravana, Śrīvana, Lauhavana, Mahāvana, Gokula, Kāliya-hrada, Dvādaśāditya, Keśī-tīrtha, etc. When He saw the place where the rāsa dance took place, He at once fell down in trance. As long as He remained at Vṛndāvana, He made His headquarters at Akrūra-ghāṭa.
From Vṛndāvana His personal servitor Kṛṣṇadāsa Vipra induced Him to go back to Prayāga to take bath during the Māgha-melā. The Lord acceded to this proposal, and they started for Prayāga. On the way they met with some Pathans, amongst whom there was a learned Moulana. The Lord had some talks with the Moulana and his companions, and the Lord convinced the Moulana that in the Koran also there are descriptions of Bhāgavata-dharma and Kṛṣṇa. All the Pathans were converted to His cult of devotional service.
When He returned to Prayāga, Śrīla Rūpa Gosvāmī and his youngest brother met Him near Bindu-mādhava temple. This time the Lord was welcomed by the people of Prayāga more respectfully. Vallabha Bhaṭṭa, who resided on the other bank of Prayāga in the village of Āḍāila, was to receive Him at his place. but while going there the Lord jumped in the River Yamunā. With great difficulty He was picked up in an unconscious state. Finally He visited the headquarters of Vallabha Bhaṭṭa. This Vallabha Bhaṭṭa was one of His chief admirers, but later on he inaugurated his own party, the Vallabha-sampradāya.
On the bank of the Daśāśvamedha-ghāṭa at Prayāga for ten days continually the Lord instructed Rūpa Gosvāmī in the science of devotional service to the Lord. He taught the Gosvāmī the divisions of the living creatures in the 8,400,000 species of life. Then He taught him about the human species. Out of them He discussed the followers of the Vedic principles, out of them the fruitive workers, out of them the empiric philosophers, and out of them the liberated souls. He said that there are only a few who are actually pure devotees of Lord Śrī Kṛṣṇa.
Śrīla Rūpa Gosvāmī was the younger brother of Sanātana Gosvāmī, and when he retired from service he brought with him two boat fulls of gold coins. This means that he brought with him some hundreds of thousands of rupees accumulated by the labor of his service. And before leaving home for Lord Caitanya Mahāprabhu, he divided the wealth as follows: fifty percent for the service of the Lord and His devotees, twenty-five percent for relatives and twenty-five percent for his personal needs in case of emergency. In that way he set an example for all householders.
The Lord taught the Gosvāmī about devotional service, comparing it to a creeper, and advised him to protect the bhakti creeper most carefully against the mad elephant offense against the pure devotees. In addition, the creeper has to be protected from the desires of sense enjoyment, monistic liberation and perfection of the haṭha-yoga system. They are all detrimental on the path of devotional service. Similarly, violence against living beings, and desire for worldly gain, worldly reception and worldly fame are all detrimental to the progress of bhakti, or Bhāgavata-dharma.
Pure devotional service must be freed from all desires for sense gratification, fruitive aspirations and culture of monistic knowledge. One must be freed from all kinds of designations, and when one is thus converted to transcendental purity, one can then serve the Lord by purified senses.
As long as there is the desire to enjoy sensually or to become one with the Supreme or to possess the mystic powers, there is no question of attaining the stage of pure devotional service.
Devotional service is conducted under two categories, namely primary practice and spontaneous emotion. When one can rise to the platform of spontaneous emotion, he can make further progress by spiritual attachment, feeling, love, and many higher stages of devotional life for which there are no English words. We have tried to explain the science of devotional service in our book The Nectar of Devotion, based on the authority of Bhakti-rasāmṛta-sindhu by Śrīla Rūpa Gosvāmī.