The Hare Krishna mahamantra 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.
Srimad Bhagavatam 4.24.69,
Meditation upon Lord Sri Krishna because He is the Absolute Truth and the primeval cause of all causes of the creation, sustenance and destruction of the manifested universes.
Srimad Bhagavatam 1.1.1,
The Lord may assume the form of a baby or a shape other than that of a human being, but it doesn’t make the slightest difference; He is always the same Supreme.
Srimad Bhagavatam 3.2.23,
Since one of His opulences is infinite beauty, all the Lord’s incarnations are very beautiful and are appreciated as such by devotees.
Srimad Bhagavatam 4.18.29,
Srimad Bhagavatam is the purely transcendental urge of the soul.
Srimad Bhagavatam Introduction,
One need only chant the Hare Krishna mahamantra. Everyone engaged in the practice of chanting the Hare Krishna mahamantra will be completely cleansed, from the core of his heart, and be saved from the cycle of birth and death.
Srimad Bhagavatam 7.6.1,