“The first he called ‘Sankirtan Movement,’ referring to the Holy Names and books, the second ‘Deity Worship Movement,’ referring to establishing temples and Deities, the third ‘Spiritual Initiation Movement,’ referring to congregational preaching, and the fourth ‘Classless Society Movement,’ referring to the Varnashrama mission.”
In this Age of Kali, the holy name of the Lord, the Hare Krishna mantra, is the incarnation of Lord Krishna. Simply by chanting the holy name, one associates with the Lord directly. Anyone who does this is certainly delivered.
In this age of Kali, the holy name of the Lord, the Hare Krishna maha-mantra, is the incarnation of Lord Krishna.
Lord Chaitanya has given special stress to chanting of these holy names of the Lord as the basic principle of spiritual advancement.
Purport on Srimad Bhagavatam 3.29.18
Holy name can give you anything and everything.
Performing kirtana and hearing the vibration of the sound Hare Krishna is actually seeing the Supreme Personality of Godhead directly.
Purport on Srimad Bhagavatam 7.4.25-26