Why is silence powerful?

Another silence began, rich and profound. I looked at the next question on my list and laughed. "You work in silence. This is because silence is the ultimate and final initiation, isn't it?" "Yes." Ma adjusted the bangle on her right wrist. "Why is silence powerful?" "God is silent. Everything comes out of silence. In silence more work can be done. the true experience of Bliss is without words." The silence returned, this time ringing with her sound.

~ from HIDDEN JOURNEY by Andrew Harvey