Caitanya Mahaprabhu has recommended that everyone 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.
Nectar of Devotion, Chapter 12,
Chanting the Hare Krishna mahamantra, vanquishes all the effects of sinful activities.
To chant God’s holy name means to associate directly with Him.
If after years of chanting we still have no taste then we have some problem, either with hearing the Holy name or with our level of surrender.
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,
Drink more and you become a drunkard. Similarly chant more and you become a perfect chanter.