Unless one is situated in uncontaminated goodness, it is very difficult to understand Lord Caitanya as the Supreme Personality of Godhead Himself. Thus in order to understand Lord Caitanya, one has to follow the direct disciples of Lord Caitanya — the Six Gosvamis — and especially the path chalked out by Srila Jiva Gosvami.

From Srila Prabhupada’s “Teachings of Lord Caitanya,” ch. 17: Lord Caitanya, the Original Personality of Godhead