SB 1.2 - Kṛṣṇa is the last word in transcendence
Therefore since time immemorial, all transcendentalists have been rendering devotional service to Lord Kṛṣṇa, with great delight, because such service is enlivening to the self. The conclusion is Kṛṣṇa is the Absolute Truth and He alone should be served. By saying ‘with great delight’ it is indicated that even at the stage of sādhana-bhakti, there are no difficulties. Lord Śrī Kṛṣṇa is the svayam-rūpa Personality of Godhead, and all other forms of Godhead are His plenary portions and integrated parts. The living entities are separated parts and parcels of the Lord. Thus Kṛṣṇa is the last word in Transcendence. Thus He is more attractive to the transcendentalists who participate in the eternal pastimes of the Lord. In other forms there is no facility for intimate personal contact as in Kṛṣṇa’s and Balarāma’s pastimes at Vraja. Kṛṣṇa’s pastimes are eternal and are manifested once in a day of Brahmā. Devotional service is performed with great delight, unlike material activities which cause only suffering. Both the aspiration to advance in devotional service and the perfection of our practice brings happiness.