Unfortunately, no transformation is taking place in the human beings in spite of repeating the Divine Name several times. You should chant the Name of God wholeheartedly with full faith. Faith develops love towards God and that love towards God confers Grace. No doubt, people today are repeating the holy name, but not with love and steady faith. They are more concerned with how others are singing and whether their shruthi (pitch) and raaga (melody) are in order, etc. They are doing Naamasankirtana with a wavering mind. There can be no transformation in them by such fickle minded sadhana in spite of doing it for hours together. Naamasankirtan has to be done with absolute concentration and steady faith like a yogi. It is said “Sathatham Yoginah”. One can achieve great transformation if the mind is steadily fixed on the Divine Name.
-Divine Discourse, 13 Nov, 2010.