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The Nectar of Instruction
Śrī Rūpa, Sanātana, Bhaṭṭa Raghunātha, Śrī Jīva, Gopāla Bhaṭṭa and Dāsa Raghunātha.
Śrī Rūpa Gosvāmī was the leader of all the Gosvāmīs, and to guide our activities he gave us this  Upadeśāmṛta  ( The Nectar of Instruction ) to follow. As Śrī Caitanya Mahāprabhu left behind Him the eight verses known as  Śikṣāṣṭaka , Rūpa Gosvāmī gave us  Upadeśāmṛta  so that we may become pure Vaiṣṇavas.
In all spiritual affairs, one's first duty is to control his mind and senses. Unless one controls his mind and senses, one cannot make any advancement in spiritual life. Everyone within this material world is engrossed in the modes of passion and ignorance. One must promote himself to the platform of goodness,  sattva-guṇa , by following the instructions of Rūpa Gosvāmī, and then everything concerning how to make further progress will be revealed.
Advancement in Kṛṣṇa consciousness depends on the attitude of the follower. A follower of the Kṛṣṇa consciousness movement should become a perfect  gosvāmī . Vaiṣṇavas are generally known as  gosvāmīs . In Vṛndāvana, this is the title by which the director of each temple is known. One who wants to become a perfect devotee of Kṛṣṇa must become a  gosvāmī .  Go  means "the senses," and  svāmī  means "the master." Unless one controls his senses and mind, one cannot become a  gosvāmī . To achieve the highest success in life by becoming a  gosvāmī  and then a pure devotee of the Lord, one must follow the instructions known as  Upadeśāmṛta , which have been given by Śrīla Rūpa Gosvāmī. Śrīla Rūpa Gosvāmī has given many other books, such as  Bhaktirasāmṛta-sindhu ,  Vidagdha-mādhava  and  Lalita-mādhava ,