We all need a bit of peace and quiet to restore a sense of balance and harmony in our lives. Without it we become sour and crabid. I suppose we must look for it first and foremost in ourselves, in our own heart. From there it can radiate outwards.
I remember hearing a story about two artists who, in a contest, were asked to paint a picture on the theme of peace and contentment. One painted a rural scene of stillness, a dreamy, leafy landscape of rolling hills, a still lake and a beautiful sunset. Yet it was the other artist who won the prize. His work showed a thundering waterfall so realistic that one could almost hear the roar of the water as it crashed on the rocks below. If one looked closely, however, one could see among the rocks a small tree with a bird and her chicks in a nest. The scene conveyed the message that the important thing about peace is that it can be achieved even in the midst of turmoil.
Alas, I haven't reached that point yet myself. I must try harder.