Hearing the Holy Name
If we hear properly, the holy name will enter through our ears into the region of our heart and shower down nectar. When we are lost in the ocean of nectar, we will see Krishna.
The Real Art of Living
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.
Associating With The Supreme Lord Directly
To associate with the holy name and chant the holy name is to associate with the Personality of Godhead directly.
This is the only medicine
Prabhupada: Ceto-darpana-marjanam [Cc. Antya 20.12]. And then bhava-maha-davagni… Then his material pangs will be over. This is the only medicine. Therefore chant Hare Krsna. Some way or other, let them have the chance of hearing, and then it will act as medicine
Greatest Boon of Lord Chaitanya
Lord Caitanya has given the greatest boon: in this age one simply has to chant the holy name of God to attain perfection in spiritual life.
Srimad Bhagavatam 3.21.7,
Srila Prabhupada.
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