"Brahman ultimately refers to the Personality of Godhead. Impersonal Brahman realization is just the negative conception of the mundane creations. Paramātmā is the localized aspect of Brahman within all kinds of material bodies. Ultimately the Supreme Brahman realization is the realization of the Personality of Godhead. Lord Śrī Kṛṣṇa is that Supreme Personality of Godhead according to all evidence of the revealed scriptures. He is the ultimate source of viṣṇu-tattvas.