In this second division of Bhakti-rasāmṛta-sindhu the author offers his respectful obeisances unto "Sanātana." This Sanātana can be interpreted as either Śrī Kṛṣṇa Himself or as Sanātana Gosvāmī, the elder brother and spiritual master of Rūpa Gosvāmī. In the case where Sanātana is accepted to mean Śrī Kṛṣṇa, the obeisances are offered to Kṛṣṇa because He is naturally so beautiful and because He is the killer of the demon Agha. If it is interpreted to mean Sanātana Gosvāmī, then it is because he is so greatly favored by Rūpa Gosvāmī, being always served by him, and because he is the annihilator of all kinds of sinful activities. In this division of Bhakti-rasāmṛta-sindhu the author wants to describe the general symptoms of the transcendental mellow (loving mood) of discharging devotional service.
In this division of Bhakti-rasāmṛta-sindhu there are five general topics: 1) vibhāva—special symptoms of ecstasy, 2) anubhāva—subsequent ecstasy, 3) sāttvika-bhāva—constitutional ecstasy, 4) vyabhicārī-bhāva—aggressive ecstasy and 5) sthāyi-bhāva—fervent ecstasy.
The word rasa, used in the Bhakti-rasāmṛta-sindhu, is understood by different persons differently because the exact English equivalent is very difficult to find. But as we have seen our spiritual master translate this word rasa into "mellow," we shall follow in his footsteps and also translate the word in that way.
The particular loving mood or attitude relished in the exchange of love with the Supreme Personality of Godhead is called rasa, or mellow. The different types of rasa, when combined together, help one to taste the mellow of devotional service in the highest degree of transcendental ecstasy. Such a position, although entirely transcendental to our experience, will be explained in this section as far as possible, following in the footsteps of Śrīla Rūpa Gosvāmī.
Without relishing some sort of mellow or loving mood in one's activities, no one can continue to perform such activities. Similarly, in the transcendental life of Kṛṣṇa consciousness and devotional service there must be some mellow or specific taste from the service. Generally this mellow is experienced by chanting, hearing, worshiping in the temple and being engaged in the service of the Lord. So when a person feels transcendental bliss, that is called "relishing the mellow." To be more clear, we may understand that the various feelings of happiness derived from discharging devotional service may be termed the "mellows" of devotional service.