In this age, Kali-yuga, this is the yugāvatāra, Lord Caitanya. And His description is mentioned in Śrīmad-Bhāgavatam. Five thousand years before, it was mentioned that kṛṣṇa-varṇam. Kṛṣṇa-varṇam means that He is in the category of Kṛṣṇa. Svayaṁ-kṛṣṇa. You can take the meaning of kṛṣṇa-varṇam like this. Varṇa means a caste, or classification. So He is in the classification of the Supreme Lord, Kṛṣṇa. Or if you don't take that meaning, then kṛṣṇa-varṇam means He is always chanting "Kṛṣṇa." Kṛṣṇaṁ varṇayati. Varṇayati means chanting. So kṛṣṇa-varṇam, always engaged in Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare / Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.
So this is the first feature. The symptoms of the yugāvatāra of this age is given like this, kṛṣṇa-varṇam. Either you can say that He is varṇayati . . . varṇayati means describing only Kṛṣṇa. Lord Caitanya preached . . . His preaching mission was ārādhyo bhagavān vrajeśa-tanaya (Caitanya-mañjusā), Kṛṣṇa. Kṛṣṇa is the only worshipable object. And He was always chanting Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare. This is the first symptom of Lord Caitanya.
Kṛṣṇa-varṇaṁ tviṣā akṛṣṇam. By complexion He is akṛṣṇa. Akṛṣṇa means not kṛṣṇa, not black. Not black, you may take, if not black, then it may, as there are four colors, so He may be white, He may be red, He may be yellow. Now, out of these three colors, in the Satya-yuga white is already done. And in the Tretā-yuga, red is already appeared. Then the balance is pīta. Kṛṣṇa is also done. Then the pīta, the yellow. So therefore His color is very golden colored, yellow. Lord Caitanya's complexion not exactly white like you, but He was golden color, golden with yellowish tint, a very nice complexion, Lord Caitanya's. He is . . . therefore His name is Gaurāṅga. Gaurāṅga means white complexion. Another name is Gaurasundara, "Very beautiful."