“My dear King, although Kali-yuga is an ocean of faults, there is still one good quality about this age: Simply by chanting the Hare Krsna maha-mantra, one can become free from material bondage and be promoted to the transcendental kingdom.”

Srimad Bhagavatam 12.3.51

srila prabhupada japa b&wFive hundred years ago, Krishna incarnated as Caitanya Mahaprabhu and ushered in the modern age of mantra meditation by popularising
the chanting of Hare Krishna Hare Krishna Krishna Krishna Hare Hare Hare Rama Hare Rama Rama Rama Hare Hare. Krishna has actually invested His power and presence in these holy names, and therefore the names are non-different from God Himself. Thus, while chanting the mantra, we are directly associating with Krishna and being purified by such communion. Chanting is a prayer that means “O energy of the Lord (Hare), O all-attractive Lord (Krishna), O supreme enjoyer (Rama), please engage me in Your service.” This chanting is exactly like the genuine cry of a child for its mother’s presence.

Tip: Recite the Hare Krishna mantra on a circle of 108 wooden beads.
This is known as japa meditation. One time round the beads each day
is for beginners, four times round as a daily minimum is for committed
members, and sixteen ‘rounds’ are for those who have taken their
lifetime vows. You can chant these holy names of the Lord anywhere
and at any time, but the early morning hours are deemed ideal. While
you’re chanting, simply fix your mind on hearing the sound of the
mantra. When you talk, it’s natural for you to listen to your voice,
and during meditation, direct this natural attentiveness to hearing the
mantra. The quality of your meditation will depend on how well you
do this.

Trinidad and Tobago's Hare Krishnas