BG Chap 10 - The devotees worship Kṛṣṇa with all their hearts
The thoughts of the pure devotees dwell in Kṛṣṇa, their lives are fully devoted to His service, and they derive great satisfaction and bliss from always enlightening one another and conversing about Kṛṣṇa. Their minds are greedy for His form, name, qualities, pastimes and the taste of His sweetness. They are unable to maintain their life without Kṛṣṇa. They explain to each other with friendliness about the types of bhakti and the real nature of bhakti. They glorify Kṛṣṇa. Since smaraṇa (mac cittāḥ), śravaṇa (bodhayantaḥ) and kīrtana (kathayantaḥ) are best among all type of bhakti, they have been specifically mentioned by Kṛṣṇa. Thus these bhaktas are satisfied and enjoy. They are satisfied even at the stage of sādhana, by continual performance of their worship brought about by good fortune, and they take pleasure in thinking of their future attainment of prema, and enjoy with their Lord thru the mind. This indicates rāgānuga bhakti.