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.
Advaita Ācārya was a contemporary of Lord Caitanya's father. He felt sorry for the condition of the world because even after Lord Kṛṣṇa's appearance, no one had interest in devotional service to Kṛṣṇa.