1. The maha-mantra is a prayer

    Whether one is a brahmana, ksatriya, vaisya, sudra, American, Englishman, Indian, etc., one can execute devotional service anywhere and everywhere in the material existence simply by offering prayers unto the Supreme Personality of Godhead. The Hare Krsna maha-mantra is also a prayer, for a prayer addresses the Supreme Personality of Godhead by His name and invokes good fortune by petitioning the Lord to allow one to engage in His devotional service. The Hare Krsna maha-mantra also says, “My dear Lord Krsna, my dear Lord Rama, O energy of the Lord, Hare, kindly engage me in Your service.”

    From Srila Prabhupada’s purport to SB 4.24.69