In another instance a devotee says, "I am always swimming in the nectarean ocean of the pastimes of the Personality of Godhead, and as such I have no more attraction for religious rituals, economic development, sense gratification, or even the ultimate salvation of merging into the existence of Brahman." This is an instance of the mind's endurance due to achieving the best thing in the world. The best thing in the world is absorption in Kṛṣṇa consciousness.
It is described in the Viṣṇu Purāṇa that when Akrūra came to take Kṛṣṇa and Balarāma to Mathurā, just by seeing Their faces he became so cheerful that all over his body there were symptoms of ecstatic love. This state is called happiness.
It is stated in the Tenth Canto, 33rd Chapter, 12th verse of Śrīmad-Bhāgavatam: "Upon seeing that Kṛṣṇa's arm was placed on her shoulder, one of the gopīs engaged in the rāsa dance became so ecstatically happy that she kissed Kṛṣṇa on His cheek." This is an instance of feeling happiness because of achieving a desired goal.
In the Tenth Canto, 71st Chapter, 29th verse of Śrīmad-Bhāgavatam, it is said: "When Kṛṣṇa first came from His Kingdom, Dvārakā, to Indraprastha,* the young females of the city became so eager to see Him that even at night, when they were lying down with their husbands, they could not restrain their eagerness. Even though they were not properly dressed and although their hair was loose and there were many household duties to perform, they still gave up everything and immediately went into the street to see Kṛṣṇa." This is an instance of eagerness of ecstatic love.