Experiencing grace involves the expansion of consciousness of self to all of one's surroundings as an unbroken whole, a consciousness of awe from which negative mindstates are absent, from which healing and groundedness result. For these reasons grace has long been deemed "amazing."
The discipline of silence doesn't mean just taking a short vacation from the spoken word. It also means giving complete relaxation to the muscles, the tissues, the tongue itself. A modern writer once said: "Knowledge has never been known to enter the head via an open mouth." It is when you become completely silent that you are able to absorb knowledge. God speaks in silence. The discipline of silence is essential on the path.