Chanting the holy name of the Lord immediately renovates the transcendental relationship of the living being with the Supreme Lord.
Sri Chaitanya Caritamrta,
Adi Lila, 7.76
Only the most intelligent people are entitled to engage in the process of chanting the mahamantra.
To associate with the holy name and chant the holy name is to associate with the Personality of Godhead directly.
We should chant the holy name in whichever condition we may be, without any worry. Lord Krishna will take care of all things.
When we hear about the Lord, we should hear with a spirit to serve the Lord. When we chant his names, we should chant so that He is pleased to hear us chanting. That is the beauty of life, the real art of living.