Sound Vibration of The Hare Krishna Mantra
The sound vibration of the Hare Krishna mantra, although presented in the ordinary alphabet, should not be taken as mundane or material.
Srimad bhagavatam 4.9.4,
Srila Prabhupada.
Understanding The Importance of The Holy Name
Chaitanya Mahaprabhu has recommended that everyone should chant the Hare Krishna mantra just to cleanse the dust from the heart. If the dust of the heart is cleansed away, then one can actually understand the importance of the holy name.
Effect of Chanting The Hare Krishna Maha Mantra
The holy name of Krishna is so attractive that anyone who chants it — including all living entities, moving and nonmoving, and even Lord Krishna Himself — becomes imbued with love of Krishna. This is the effect of chanting the Hare Krishna maha-mantra.
Chaitanya Caritamrta, Antya Lila 3.268,
Srila Prabhupada
Best Means of Spiritual Realization
The best means of spiritual realization is chanting the holy name of the Lord.
Bhagavad Gita 6.11-12,
Srila Prabhupada.
The Holy Name
You just accept the holy name, then Nityananda Prabhu will be responsible for taking you across this material world.
Krishna’s Holy Name
It is said, kali-kale nama-rupe krishna-avatara: Krishna descends in this Kali-yuga in the form of His holy name — Hare Krishna, Hare Rama.
Srimad Bhagavatam 9.10.53,
Srila Prabhupada