Lord Caitanya also instructed Sanātana to describe the symptoms of a holy man, the process of satisfying the sages, and the value of rejecting the society of undesirable persons and hearing Śrīmad-Bhāgavatam constantly. Also to be described were how to follow the daily, fortnightly and monthly duties, how to observe fasting on the Ekādaśī day, how to observe ceremonies like the birthday of the Lord, and how to observe fasting not only on Ekādaśī but also on Janmāṣṭamī, Vāmana-dvādaśī, Rāma-navamī and Nṛsiṁha-caturdaśī. Lord Caitanya also instructed Sanātana to explain that it is helpful in the advancement of devotional service to avoid fast days that overlap with other days (viddhā). Also to be explained were how to establish temples of the Lord, along with the general behavior, symptoms, duties and occupation of a Vaiṣṇava. And at every step, Lord Caitanya said, Sanātana Gosvāmī should give documentary evidence from the purāṇas. Thus the Lord gave a summary of all the topics Sanātana should include in his book on Vaiṣṇava regulative principles.
Sanātana Gosvāmī was a great devotee of the Lord, and he was directly instructed to spread the cult of bhakti by writing many books. There is a description of Sanātana in the Caitanya-candrodaya, where it is said that Sanātana Gosvāmī was one of the most important personalities in the government of Nawab Hussain Shah. Sanātana's brother, Rūpa Gosvāmī, was also a minister in the government, but both of them gave up their lucrative government posts to become mendicants and serve the Supreme Lord. Externally the brothers became just like ordinary mendicants, but their hearts were filled with transcendental loving service and a great love for the cowherd boy of Vṛndāvana. Indeed, Sanātana Gosvāmī was dear to all pure devotees of his time.