Sri Caitanya Mahaprabhu's first statement (krsna kene darasana dibe kali-kale) refers to the scriptures. According to scripture, Krsna appears in Dvapara-yuga, but He never appears as Himself in Kali-yuga. Rather, He appears in Kali-yuga in a covered form. As stated in Srimad-Bhagavatam (11.5.32): krsna-varnam tvisakrsnam sangopangastra-parsadam. Krsna appears in the Age of Kali in the garb of a devotee, Sri Caitanya Mahaprabhu, who always associates with His internal soldiers-Sri Advaita Prabhu, Sri Nityananda Prabhu, Srivasa Prabhu and Gadadhara Prabhu. Although Balabhadra Bhattacarya was personally serving Lord Krsna in His role as a devotee (Caitanya Mahaprabhu), he mistook Lord Krsna for an ordinary man and an ordinary man for Lord Krsna because he did not follow the rules set down by sastra and guru.