Lord Kṛṣṇa Himself appears as Lord Caitanya to preach the highest truth. Lord Caitanya taught Kṛṣṇa consciousness and chanted the name of Kṛṣṇa. Therefore, to worship Lord Caitanya, everyone should together chant the mahā-mantra — Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare.
Śrīmad-Bhāgavatam 12.3.52
tretāyāṁ yajato makhaiḥ
dvāpare paricaryāyāṁ
kalau tad dhari-kīrtanāt
Whatever result was obtained in Satya-yuga by meditating on Viṣṇu, in Tretā-yuga by performing sacrifices, and in Dvāpara-yuga by serving the Lord’s lotus feet can be obtained in Kali-yuga simply by chanting the Hare Kṛṣṇa mahā-mantra.
The importance of chanting Hare Kṛṣṇa in Kali yuga
Śrīla Jīva Gosvāmī has cited the Cāturmāsya-māhātmya of the Skanda Purāṇa concerning the necessity of chanting Hare Kṛṣṇa in this age:
tapaḥ śrī-hari-kīrtanam
kalau yuge viśeṣeṇa
viṣṇu-prītyai samācaret
“In this way the most perfect penance to be executed in this world is the chanting of the name of Lord Śrī Hari. Especially in the Age of Kali, one can satisfy the Supreme Lord Viṣṇu by performing saṅkīrtana.”
In the Age of Kali, intelligent persons perform congregational chanting to worship the incarnation of Godhead who constantly sings the names of Kṛṣṇa. Although His complexion is not blackish, He is Kṛṣṇa Himself. He is accompanied by His associates, servants, weapons and confidential companions.