Lord Śrī Kṛṣṇa, the Supreme Personality of Godhead, appears with His personal entourage once in paraphernalia, just to attract the conditioned souls of the material world. Although the material world is only a shadow of the spiritual world, the materially encaged living entities seek spiritual happiness here in a form perverted by materialistic attachment. Empiric philosophers with a poor fund of knowledge imagine a spiritual picture that is impersonal. But the spiritual living being, less attracted by the impersonal form of spiritual emancipation, becomes more attracted by the material form and becomes hopeless of spiritual emancipation.
Therefore the Absolute Personality of Godhead, out of His limitless and causeless mercy, descends from the spiritual kingdom and displays His personal pastimes at Vṛndāvana, the replica of the Kṛṣṇaloka planet in the spiritual sky. Vṛndāvana is the most sacred place within this cosmic universe, and people seeking to achieve spiritual emancipation by entering the kingdom of God may make a home at Vṛndāvana and become serious students of the six Gosvāmīs, who were instructed by Lord Śrī Caitanya Mahāprabhu. The six Gosvāmīs were headed by Śrīla Rūpa Gosvāmī, who was followed by Śrīla Sanātana, Śrīla Bhaṭṭa Raghunātha, Śrīla Jīva, Śrīla Gopāla Bhaṭṭa, and Śrīla Raghunātha dāsa Gosvāmī. They were all seriously engaged in research and excavation of the mystery of Vṛndāvana-dhāma.
Lord Śrī Kṛṣṇa, the Supreme Personality of Godhead, appeared at Vṛndāvana about five thousand years ago, and the relics of His appearance at Vṛndāvana were lost from view. But Lord Śrī Caitanya Mahāprabhu, who is the very same Lord Śrī Kṛṣṇa in the form of a great devotee, appeared at Navadvīpa, a district in West Bengal, and excavated the holy places of Lord Śrī Kṛṣṇa's transcendental pastimes. He instructed the above-mentioned six Gosvāmīs to compose authorized literature on the cult of Vṛndāvana, and any serious student anxious to know about the Supreme Lord may take advantage of this invaluable literature and the guidance of authorized scholars and thus know about the Lord of Vṛndāvana, Śrī Kṛṣṇa, the Personality of Godhead.