Purport to Panca-tattva Maha-mantra
Sri Caitanya Mahaprabhu is always accompanied by His plenary expansion Sri Nityananda Prabhu, His incarnation Sri Advaita Prabhu, His internal potency Sri Gadadhara Prabhu, and His marginal potency Srivasa Prabhu. He is in the midst of them as the Supreme Personality of Godhead. One should know that Sri CaitanyaMahaprabhu is always accompanied by these other tattvas. Therefore our obeisances to Sri Caitanya Mahaprabhu are complete when we say, sri-krsna-caitanyaprabhunityanandasri-advaitagadadharasrivasadi-gaura-bhakta-vrnda. As preachers of the Krsna consciousness movement, we first offer our obeisances to Sri Caitanya Mahaprabhu by chanting this Panca-tattva mantra, namely, sri-krsna-caitanyaprabhunityanandasri-advaitagadadharasrivasadi-gaura-bhakta-vrnda; then we say, Hare Krsna, Hare Krsna, KrsnaKrsna, Hare Hare/Hare Rama, Hare Rama, Rama Rama, Hare Hare. There are ten offenses in the chanting of the Hare Krsnamaha-mantra, but these are not considered in the chanting of the Panca-tattva mantra. Sri Caitanya Mahaprabhu is known as mahavadanyavatara, the most magnanimous incarnation, for He does not consider the offenses of the fallen souls. Thus to derive the full benefit of the chanting of the maha-mantra (Hare Krsna, Hare Krsna, KrsnaKrsna, Hare Hare/ Hare Rama, Hare Rama, Rama Rama, Hare Hare), we must first take shelter of Sri Caitanya Mahaprabhu, learn the Pancatattva mantra, and then chant the Hare Krsnamaha-mantra. That will be very effective.
Hare Krishna Hare Krishna KrishnaKrishna Hare Hare
Hare Rama Hare Rama RamaRama Hare Hare
The Hare Krishna maha-mantra is a very simple mantra consisting of only three words: Hare, Krishna, and Rama.
Hare means unto Mother Hara (i.e. Lord Krishna's personal pleasure potency, SrimatiRadharani).
Krishna means the all-attractive Lord.
Rama means the source of all enjoyment.
When we chant Hare Krishna we are praying: "O energy of the Lord (Hare), O Lord (Krishna) please engage me in Your service!"
Maha-mantra means it is the Great Mantra Of Deliverance. The sixteen words of the Hare Krishna mantra are especially meant for counteracting the contaminating influence of the age of Kali.