This book unravels the importance of Silence. Silence is useful. Falling silent can be a means of learning about the world around us, or a powerful way of letting someone know what we feel. Silence is also a space in which to cultivate peace of mind and body. It is a defence against intrusion. But silence may also be deadly. A long silence in marriage is some- times fatal to the relationship. Political silences kill. Silence is effective. Without measured silence music would be cacophony. An astute broadcaster falls silent to entice the inter- viewee to open up; an analyst to invite interpretation; a business executive to wrongfoot those with whom he or she negotiates. Silence is refreshing. The meditator is quiet in order to settle the senses and to enhance perception; a monk to listen for the word of the Lord; the exhausted worker to embrace relaxation and recupera- tion. Silence may have secular or spiritual significance. Clearly, silence has an important place in our lives. Yet, just as it is increasingly difficult to escape artificial lighting at night, so we have accepted noise or constant sound as a price worth paying for contemporary conveniences.