Q: What is silence?
A: Silence is an austerity. You control your desire to talk. By talking, people try to impress others, which you can't do if you are in silence. In silence you have to develop tolerance. At first it is difficult to do because you separate yourself from others by not expressing yourself. But gradually the mind reduces that ego and an aspirant accepts the situation, which develops tolerance and reduces anger.

Silence Speaks, from the chalkboard of Baba Hari Dass, 1977