Speechlessness is caused by an empty head or a blank mind that is silence. Enthusiasm fades away like dying embers, thus leading to cynicism and indifference to life, and arousing neither happiness nor sadness, neither anxiety nor rage, and neither interest nor desire for anything worldly, that is silence. Despite all the experiences of love and hate, of disorientation and reorientation, of order-giving that was answered by hundreds and calling that was not answered by a single soul, he keeps his mouth shut, but only watches the world calmly—that is silence as well. With sufferings and hardships, tastes of all kinds of human conditions, footprints left in mountains and valleys and sounds of rivers and oceans cherished in the heart, he is deep in thought —that is still silence.