Nānā-śāstra-vicāraṇaika-nipuṇau sad-dharma. Because people are misled. So they should be given opportunity to study, to understand what is God consciousness, what is Kṛṣṇa consciousness. So through the śāstras. That is also required. Nānā-śāstra-vicāraṇaika-nipuṇau sad-dharma . . . the Gosvāmīs practically demonstrated in their life everything. Caitanya Mahāprabhu taught them. They were the first disciples of Śrī Caitanya Mahāprabhu. Rūpa Gosvāmī was given lesson for ten days continually at Allahabad, Prayāga, Daśāśvamedha-ghāṭa. As a result of his instruction, he first wrote this Bhakti-rasāmṛta-sindhu, which we have translated into English, Nectar of Devotion. Similarly, Sanātana Gosvāmī was given instruction for two months at Benares, Vārāṇasī.
So bhakti is not that it is something sentiment, without any basic principle of knowledge. No. It is fully based on Vedic knowledge. Bhaktyā śruta-gṛhītayā. Śruta. Śruta means Veda. Bhakti, after studying the Vedic knowledge—that is perfect bhakti. Vedānta-sūtra. Therefore Caitanya Mahāprabhu, He talked on Vedānta-sūtra at Benares. And because the Māyāvādī sannyāsīs, they were criticizing Caitanya Mahāprabhu that, "A sentimental sannyāsī, devotee. He does not study Vedānta-sūtra . . ." The Lord was criticized like that. So some of His devotees requested that, "We know that You do not mix with the Māyāvādī sannyāsīs, but they are criticizing You. If You kindly meet them." So Śrī Caitanya Mahāprabhu met all the Vārāṇasī Māyāvādī sannyāsīs. Prakāśānanda Sarasvatī, he had sixty thousand disciples. So they asked . . . the Prakāśānanda Sarasvatī asked Caitanya Mahāprabhu that "You are a sannyāsī. So You do not study Vedānta-sūtra. It is the," I mean to say: "vow of the sannyāsīs that they must." Vedānta-sūtra is the crucial point of sampradāya. One sampradāya must give his commentation on the Vedānta-sūtra; otherwise he is not a bona fide sampradāya. So especially in the Śaṅkara sampradāya, they are very much fond of studying Sāṅkhya philosophy and Vedānta-sūtra.
So Caitanya Mahāprabhu, when He went to Vārāṇasī, He was simply dancing and chanting Hare Kṛṣṇa mantra. So people began to criticize. Not people, this sannyāsī-sampradāya. So His devotees, they became little sorry that, "Our Lord is being criticized." Therefore He accepted their invitation, and there was Vedānta talk with Prakāśānanda Sarasvatī, and Śrī Caitanya Mahāprabhu became victorious, and they became all disciples. These are statement in the Caitanya-caritāmṛta.