For one who is anxious to engage constantly in hearing such topics, kṛṣṇa-kathā gradually increases his indifference towards all other things. Such constant remembrance of the lotus feet of Lord Kṛṣṇa by the devotee who has achieved transcendental bliss vanquishes all his miseries without delay.
(Srimad Bhagavatam---3:5:13--purport).

The transcendental bliss enjoyed by the devotees of the Lord is completely different from the material happiness enjoyed by less intelligent persons. The less intelligent persons in the material world are engaged by the four principles of benediction called dharma, artha, kāma and mokṣa. Generally they prefer to take to religious life to achieve some material benediction, the purpose of which is to satisfy the senses.
(Srimad Bhagavatam---3:15:48--purport).

The transcendental bliss derived from devotional service, primarily from śravaṇaṁ kīrtanam (S.B.7:5:23), hearing and chanting, cannot be compared to the happiness derived by karmīs by elevating themselves to the heavenly planets or by jñānīs or yogīs, who enjoy oneness with the supreme impersonal Brahman. Yogīs generally meditate upon the transcendental form of Viṣṇu, but devotees not only meditate upon Him but actually engage in the direct service of the Lord. In the previous verse we find the phrase bhavāpyaya, which refers to birth and death. The Lord can give relief from the chain of birth and death. It is a misunderstanding to think, as do the monists, that when one gets relief from the process of birth and death he merges into the Supreme Brahman. Here it is clearly said that the transcendental bliss derived from śravaṇaṁ kīrtanam by pure devotees cannot be compared to brahmānanda, or the impersonal conception of transcendental bliss derived by merging into the Absolute.
(Srimad Bhagavatam--4:9:10---purport).

When a devotee is actually engaged in the service of the lotus feet of the Lord, his engagement in itself is so perfect that there is no need to ask for further benediction. When a bee approaches the pārijāta tree, it gets unlimited supplies of honey. There is no need to go to another tree. If one is fixed in the service of the lotus feet of the Lord, there is unlimited transcendental bliss, and as such there is no need to ask for further benediction.
(Srimad Bhagavatam---4:30:32---purport).

A Vaiṣṇava is always firmly situated in transcendental bliss because of engagement in devotional service. Although he may appear to suffer material pains, his position is called transcendental bliss in separation (viraha). The emotions a lover and beloved feel when separated from one another are actually very blissful, although apparently painful. Therefore the separation of Lord Rāmacandra from Sītādevī, as well as the consequent tribulation they suffered, is but another display of transcendental bliss. That is the opinion of Śrīla Viśvanātha Cakravartī Ṭhākura.
(Srimad Bhagavatam---5:19:5---purport).

The Lord and the devotees both conquer. The Lord is conquered by the devotees, and the devotees are conquered by the Lord. Because of being conquered by one another, they both derive transcendental bliss from their relationship. The highest perfection of this mutual conquering is exhibited by Kṛṣṇa and the gopīs. The gopīs conquered Kṛṣṇa, and Kṛṣṇa conquered the gopīs.
(Srimad Bhagavatam---6:16:34---purport).-