The Kṛṣṇa—His form, His name, His quality, His pastimes, His paraphernalia—cannot be experienced by these material senses. Ataḥ śrī-kṛṣṇa-nāmādi na bhaved grāhyam indriyaiḥ. He is beyond the indriyas. But if one is engaged in devotional service, sevonmukhe hi jihvādau. . . That devotional service begins from jihvā, tongue. This tongue means can be utilized in devotional service in two ways, namely by chanting the holy name of God and by tasting prasādam. If first of all one engages his jihvā, means tongue, in devotional service by chanting the holy name, Hare Kṛṣṇa mahā-mantra, and tasting only kṛṣṇa-prasādam, not anything else, then Kṛṣṇa, being pleased by his devotional service, He manifests Himself, reveals Himself. That revelation is experienced, very highly advanced devotee.
So for advanced devotee everything is possible, as described by this gentleman. But that is not for everyone. That is not a common thing. Exceptional. For the common person, as Caitanya Mahāprabhu has advised and as He has practically shown in His life, that is devotional service in separation: "Where is Kṛṣṇa?" Śūnyāyitaṁ jagat sarvaṁ govinda-viraheṇa me (Śikṣāṣṭaka 7): "I am seeing everything vacant because I cannot see Kṛṣṇa." The same thing was followed by the Gosvāmīs. He rādhe vraja-devike ca lalite he nanda-sūno kutaḥ: "Where you are? O Rādhārāṇī, O Kṛṣṇa, O the gopīs, where you are?" He rādhe vraja-devike ca lalite he nanda-sūno kutaḥ śrī-govardhana-pādapa-tale kālindī-vane kutaḥ. Govardhana-pādapa-tale: "Either on the valley of the Govardhana Hill or on the bank of the Ganges, where you are, all?" Seeking.