According to the Vedic literature, the foremost occupational duty for humanity in this Age of Kali is nāma-saṅkīrtana, or congregational chanting of the holy name of the Lord. The incarnation for this age especially preaches this process, but only Kṛṣṇa Himself can explain the confidential loving service performed in the four principal varieties of loving affairs between the Supreme Lord and His devotees. Lord Kṛṣṇa therefore personally appeared, with His plenary portions, as Lord Caitanya. As stated in this chapter, it was for this purpose that Lord Kṛṣṇa appeared personally in Navadvīpa in the form of Śrī Kṛṣṇa Caitanya Mahāprabhu.
Kṛṣṇadāsa Kavirāja has herein presented much authentic evidence from Śrīmad-Bhāgavatam and other scriptures to substantiate the identity of Lord Caitanya with Śrī Kṛṣṇa Himself. He has described bodily symptoms in Lord Caitanya that are visible only in the person of the Supreme Lord, and he has proved that Lord Caitanya appeared with His personal associates-Śrī Nityānanda, Advaita, Gadādhara, Śrīvāsa and other devotees-to preach the special significance of chanting Hare Kṛṣṇa. The appearance of Lord Caitanya is both significant and confidential. He can be appreciated only by pure devotees and only through the process of devotional service. The Lord tried to conceal His identity as the Supreme Personality of Godhead by representing Himself as a devotee, but His pure devotees could recognize Him by His special features. The Vedas and Purāṇas foretell the appearance of Lord Caitanya, but still He is sometimes called, significantly, the concealed descent of the Supreme Personality of Godhead.