Mental chanting

hare krsna maharaj.pamho.AGTSP.

i realized that when i chant internally /mentally. I can feel my heart also moving with mantra. But when i use my jaw i can dont feel anything in heart moreover my mind is full of thoughts. 

is it ok to chant with paw and mind?

HpS - From what we have heard the tongue and jaw should be moving for at least the 16-rounds. NOI 7. In the beginning maybe no nectar but following the way of the Acharya the sweetness will come. Of course, always chant as much as you can anyway you can after or before the 16-formal rounds.

parrot chanter