Sevā mean there is a sevaka and there is a master, sevya—one who is worshiped and one who serves. Then the process is called bhakti. Here it is also said, bhaktyā. What kind of bhakti? Bhaktyā śruta-gṛhītayā. Śruta, by hearing śruti, or Vedas. Completely on the basis of Vedic knowledge, that bhakti; not sentimental. Sentimental bhakti is also there, because the acceptance of Kṛṣṇa is there. Therefore there is some value. But real bhakti, Śrī Jīva Gosvāmī has commented that bhakti based on understanding of Vedānta-sūtra is perfect, on the basis of jñāna and . . . knowledge, and vairāgya. That is . . . and Kṛṣṇa has also said, brahma-sūtra-padaiś caiva hetumadbhir viniścitaiḥ (BG 13.5). Brahma-sūtra means Vedānta-sūtra.
So actually the Vedānta-sūtra, everything is bhakti. But unfortunately, people have taken Vedānta in a different way, after the Śārīraka-bhāṣya. But all the ācāryas, Rāmānujācārya, Madhvācārya, they have all, they have commentated on Vedānta-sūtra. So Vedāntī does not mean simply the Māyāvādīs. Actually Vedāntists are the devotees. Because veda anta. Veda means knowledge, and anta means the last word. The last word is bhagavān. That is Vedānta. Here it is said, brahmeti paramātmeti bhagavān iti śabdyate (SB 1.2.11). If you understand by studying Vedānta simply Brahman realization, that is not perfect. If you understand Paramātmā realization by studying Vedānta, that is also not perfect. When you come to understand Bhagavān, that is perfect. That is confirmed in the Bhagavad-gītā: vedaiś ca sarvair aham eva vedyaḥ (BG 15.15). By studying Vedānta or all Vedic literatures, if you do not understand Kṛṣṇa, then śrama eva hi kevalam (SB 1.2.8).