Prescription for the Age of Kali.

Similarly, in this age of Kali* the Hare Krsna mantra is prescribed in the sastras, or scriptures. And the great teacher Caitanya Mahaprabhu, whom we consider to be an incarnation of God, also prescribed it. Therefore, our principle is that everyone should follow the prescription of the great authorities. Mahajano yena gatah sa panthah. We should follow in the footsteps of the great authorities. That is our business. The Mahabharata states, "Dry arguments are inconclusive. A great personality whose opinion does not differ from others is not considered a great sage. Simply by studying the Vedas, which are variegated, one cannot come to the right path by which religious principles are understood. The solid truth of religious principles is hidden in the heart of an unadulterated, self-realized person. Consequently, as the sastras affirm, one should accept whatever progressive path the mahajanas advocate." [Mahabharata, Vana-parva, 313.117] This Vedic mantra says that if you simply try to argue and approach the Absolute Truth, it is very difficult. By argument and reason it is very difficult, because our arguments and reason are limited. And our senses are imperfect. There are many confusing varieties of scriptures, and every philosopher has a different opinion, and unless a philosopher defeats other philosophers, he cannot become recognized as a big philosopher. One theory replaces another, and therefore philosophical speculation will not help us arrive at the Absolute Truth. The Absolute Truth is very secret. So how can one achieve such a secret thing? You simply follow the great personalities who have already achieved success. So our Krsna consciousness philosophical method is to follow the great personalities, such as Lord Krsna, Lord Caitanya, and the great spiritual masters in disciplic succession. Take shelter of bona fide authorities and follow them-that is recommended in the Vedas. That will take you to the ultimate goal.

Source : https://harekrishna.com/col/books/YM/cbh/ch2.html

Note : If you belong to another religion, you can chant the names of G-d from your own religion.