Also known as the ‘maha-mantra’.
The mantra is a spiritual call to the Lord. There is no need to understand the language of the mantra, nor is there any need of mental speculation, nor any intellectual adjustment for chanting this maha-mantra. It springs automatically from the spiritual platform, and as such anyone can take part in this transcendental sound vibration without any previous qualification and dance in ecstasy.
The word Hara is a form of addressing the energy of the Lord. Both Krishna and Rama are forms of directly addressing the Lord, and they mean “the highest pleasure.” Hara is the supreme pleasure potency of the Lord. This potency, addressed as Hare, helps us in reaching the Supreme Lord.
The three words—namely Hare, Krishna, and Rama—are the transcendental seeds of the maha-mantra, and the chanting is the spiritual call for the Lord and His internal energy, Hara, for giving protection to the conditioned souls. The chanting is exactly like genuine crying by the child for his mother. Mother Hara helps in achieving the grace of the supreme father Hari, or Krishna, and the Lord reveals Himself to such sincere devotees.
Hare Krishna Hare Krishna
Krishna Krishna Hare Hare
Hare Rama Hare Rama
Rama Rama Hare Hare
Oh energy of the Lord, please engage me in the loving service of Lord Krishna.
Kali Santarana Upanishad