नमो महावदान्याय

Karbhajan Muni spoke to Nimi Maharaj; it comes in Srimad Bhagavatam, about the Holy Divine Advent of Supreme Lord in this Kali-yuga,

krishna-varṇaṁ tviṣākrishnaṁ
sāṅgopāṅgāstra-pārṣadam
yajñaiḥ saṅkīrtana-prāyair
yajanti hi su-medhasaḥ

(He Who is always devoted to uttering the two syllables ‘kṛ’ and ‘ṣṇa’ and by that is devotionally inclined to search for Krishna; Whose essential parts are Sri Nityananda Prabhu and Sri Advaita Acharya; Whose accessory limbs are His sheltered devotees—Srivas Pandit etc.; Whose weapon is Harinam—the Holy Name; Whose personal and most dear associates are Sri Gadadhar Pandit, Swarup Damodar, Rai Ramananda, Sanatan, Rupa etc.; Whose charming color is akrishna—signifying the golden color of that very Gaura Sundara—inside Krishna and outside Gaura, the effulgence of the combined manifestation of RadhaKrishna; will be worshipped by highly talented persons in this Kali-yuga by means of sankirtan-yajna.)

When Gargacharya goes to Nand-bhavan for the naming ceremony of Krishna, He tells Nanda Maharaj, “Your child has already appeared previously in three different complexions. Now in Dvaparyuga, He has come with dark complexion. And in Kali-yuga, He comes with yellow complexion.”

In Srimad Bhagavatam, the proof is there in this regard. You will find the proof in so many scriptures.

Nityanand Prabhu is Balaram Himself. Balaram is non-different from Krishna. He has taken the mood of a devotee and is serving the Lord teaching us on how to serve Him. Balaram acts as Guru. Ontologically, He is non-different from Krishna but He acts as Guru to teach us. In Gaura-lila, He accepts the mood of a devotee. Krishna also takes the mood of Radharani, the mood of a devotee and came as Gauranga Mahaprabhu. He is antar krishna, bahir gaur—from within He is Krishna Himself and outside He is Gaur. He appears in this very Kali-yuga of Vaivasvata Manvantar by taking the form and mood of worship of Radharani, principally to taste the sweetness of the Supreme Lord Sri Krishna that Radharani relishes all the time by worshiping Him constantly. He desires to experience the attraction, taste and the ecstatic feelings that manifests in Radharani out of Her love for Him. And to do so, He takes Her mood and appears as Gauranga Mahaprabhu in this special 28th Kali-yug of this Vaivasvata Manvantar.

Kali-yuga has the duration of 4,32,000 years. Dwapar is double of Kali-yuga, Treta-yuga is triple of Kali-yuga and Satya-yuga is four times of span of Kali-yuga. And 71 such Chatur-yuga is the life span of one Manu and 14 such Manu’s life span is one day of Brahma and also same is his night. In the Dvapara-yuga of this 7th Manvantar, Krishna Himself appears and in the Kali-yuga which follows this Dvapara-yuga comes Gauranga Mahaprabhu.

In Chaitanya Charitamrit it is written, Mahaprabhu declares, yuga-dharma pravartaimu nama-sankirtana, chari bhava bhakti diya nachamu bhuvana—I shall personally inaugurate the religion of the age, Nama-sankirtan (congregational chanting of the Holy Name). I shall make the world dance in ecstasy, making them experience the loving devotional service in any of the four mellows—dasya, sakhya, vatsalya and madhurya.

Krishna says,

yuga-dharma-pravartana haya aṁśa haite
āmā vinā anye nare vraja-prema dite

  My plenary portion, Vishnu also can establish the principles of religion for each age (Yuga Dharma). But No one other than Me, however, can bestow Vraja-prem, the loving service performed by the residents of Vraja.

aṣṭāviṁśa catur-yuge dvāparera śeṣe
vrajera sahite haya kṛṣṇera prakāśe
(Chaitanya Charitamrit 3.10)

(At the end of the Dvapara-yuga of the twenty-eighth Divya-yuga, Lord Krishna appears on the earth with the full paraphernalia of His eternal Vraja-dhama.]

chira-kāla nāhi kari prema-bhakti dāna
bhakti vinā jagatera nāhi avasthāna
(Chaitanya charitamrit 3.14)

(For a long time I have not bestowed the unalloyed loving service to Me upon the inhabitants of the world. Without such loving attachment, the existence of the material world is useless.)

Chira-kala—for a long time. Mahaprabhu appears once in a day of Brahma to distribute the Divine Love for Sri Krishna. We cannot even think about the duration of one day of Brahma. Therefore Mahaprabhu utters the word, chira-kala—longtime.

He further says,

sakala jagate more kare vidhi-bhakti
vidhi-bhaktye vraja-bhāva paite nāhi śakti
(Chaitanya charitamrit 3.15)

Everywhere in the world people worship Me with reverence (vaidhi-bhakti) following the rules and regulations prescribed in scriptures. But simply by following such rules and regulations one cannot attain the loving service mood of Vraja-vasis. By worshiping Supreme Lord with spiritual injunctions, one can get the service of Laxmi-Narayan but not the loving service of Nandnandan Krishna. One can get Nandnandan Krishna only by spontaneous loving devotion. So in this special Kali-yuga of Vaivasvata Manvantar, Gauranga Mahaprabhu appears by taking the mood and bodily luster of Radharani, principally to taste the sweetness of the Supreme Lord Krishna that She experiences in His service. We are very fortunate to have taken birth in this special Kali-yug in which Nandnandan Krishana Himself appears as Gauranga Mahaprabhu to distribute the Divine Love which is rare to attain.

Srila Rupa Goswami writes,

anarpita-carīṁ cirāt karuṇayāvatīrṇaḥ kalua
samarpayitum unnatojjvala-rasāṁ sva-bhakti-śriyam
hariḥ puraṭa-sundara-dyuti-kadamba-sandīpitaḥ
sadā hṛdaya-kandare sphuratu vaḥ śacī-nandanaḥ
(Chaitanya charitamrit 1.4)

(May the Supreme Lord who is known as the son of Srimati Sachi-devi be transcendentally situated in the innermost chambers of your heart. Resplendent with the radiance of molten gold, He has appeared in the Age of Kali by His causeless mercy to bestow what none of the avataras have ever offered before: the most sublime and radiant mellow of devotional service, the mellow of conjugal love.)

So Chaitanya Mahaprabhu distributes the Divine Love which none of the other avataras have ever offered. He is Mahavadanyaya (Most Magnanimous).

namo mahavadnyaya
krishna-prem paradyite,
krishnay krishna chaitanya
namine gaura-tvishe namah