amara ajnaya explained

So unless we come to the point of taking shelter at the lotus feet of Krsna, our life is imperfect. Therefore Krsna comes. He says ultimately that "My dear Arjuna, because you are My very dear friend, I am giving you the most confidential knowledge." What is that? Sarva-dharman parityajya mam ekam saranam vraja [Bg 18.66]. This is most confidential. So Caitanya Mahaprabhu's mission is the same, because Caitanya Mahaprabhu is Krsna Himself. Krsna reminded that sarva-dharman parityajya mam ekam saranam vraja, but the duskrtina mūḍha naradhamaḥ, [Bg 7.15] they could not understand it. Therefore Caitanya Mahaprabhu came again as a devotee of Krsna to teach how to take shelter of Krsna's lotus feet. This is Caitanya Mahaprabhu. Therefore Caitanya Mahaprabhu says that-His mission is especially to the Indians, those who are born in India-that amara ajnaya guru hana tara ei desa [Cc Madhya 7.128].    (More...)