When you are typing, you should know that it is as good as chanting, because the work is also on the matter of Krishna. Chanting on the beads and chanting on the typewriter Composer machine are both transcendental sounds of Krishna. Krishna's Name, His Fame, His Qualities - all of them are on the absolute platform, and therefore there is no difference between one and another. So do not be misled that you are typing and not chanting.
Letter to Arundhati, 16 June, 1969