When one is accustomed to inoffensive chanting, then his fruit is that he is promoted to pure love of Godhead or Prema.
By chanting the holy name of the Lord, one is immediately freed from the blazing fire of material existence.
Nectar of Instruction Verse 7,
We should chant the name of the Lord, Hare Krishna, that has as much potency as the Lord Himself.
Srimad Bhagavatam 3.21.32
Chanting Hare Krishna increases the ocean of transcendental bliss.
By chanting Krishna's Holy Name, one cleanses all the dust from the mirror of one's consciousness.
The Krishna consciousness movement is therefore distributing sublime information to the entire human society to the effect that by simply chanting the Hare Krishna mantra one can become perfect in this life and go back home, back to Godhead.
Bhagavad Gita 9.25,