In the age of Kali-yuga, Lord Krishna advents in this material world as Lord Chaitanya Mahaprabhu along with Balarama appearing as Lord Nityananda. Lord Nityananda is also known as Nitai, Nityananda Prabhu and Nityananda Rama. He took the role of Lord Chaitanya’s principal associate for spreading the chanting of the holy names of Lord Krishna in the form of Harinama-sankirtana. He distributed the mercy of Lord Krishna to all the fallen, materially conditioned souls of this age by performing the congregational chanting of the Lord’s holy names. According to the teachings of the acharyas, Chaitanya Mahaprabhu cannot be approached or understood without taking shelter of Nityananda Prabhu, who is the original guru of all the universes. He serves as an intermediary between Lord Chaitanya and His devotees. He is the second body of the Lord, manifesting as Balarama to Sri Krishna, Lakshmana to Sri Rama and Nityananda Prabhu to Chaitanya Mahaprabhu.