Lord Nityananda appeared as Lord Caitanya's principal associate for spreading the congregational chanting of the holy names of the Lord. He especially spread the holy name of the Lord throughout Bengal. Mahaprabhu cannot be approached or understood without the mercy of Nityananda Prabhu. His garments resemble a cluster of blue lotus flowers and His effulgence is said to surpass the grandeur of a rising moon at sunset. He has a deep melodious voice, constant singing the glories of Sri Krishna and carries a red stick with benedictions for the devotees, but feared by the demoniac. He has the carefree mood of a wild avadhuta, so absorbed is He in the love of Godhead, and no one knows what He will do next.
Nityananda Prabhu was born on the auspicious shukla-trayodashi (thirteenth day of the bright fortnight)in the month of Magha(January-February) as the son of Hadai Pandita and Padmavati in Ekacakra in 1473. As a child, Nitai (as Nityananda Prabhu was called), loved to enact the pastimes of Sri Krishna or Lord Rama. He did this so authoritatively and with such rapture, that the entire village would be immersed in the love of Godhead.During His marriage feast, Lord Nityananda saw Vasudha's sister Jahnavi serving out prasadam in her 4-armed form. He recognized her as his eternal potency, so He took her as His wife also.
Lord Nityananda incarnates as His plenary expansion Ananta Sesa. As Lord Sesa He transforms His body to become the garments, bracelets, and other ornaments worn by Lord Visnu and Lord Krsna. Expanding again as the pastime-potency, lila-sakti, Lord Sesa is aware of all the details of Lord Krsna's confidential pastimes. Lord Nityananda is the second body of the Lord, manifesting as Balaram to Sri Krishna, Lakshman to Sri Ram and Nityananda Prabhu to Caitanya Mahaprabhu.