The world is a place of constant change and unrest. Each point in time is distinct from the point before and the point after. Each point in space is its own world, with its own conditions and state of being. It is a world of fragments, a perpetual rush of traffic and noise. Look at your own life: You do so many different things, one after the other without any apparent connection between them. Inner peace is when every part of you and every facet of your day is moving in the same direction. When you serve one G-d, have one purpose, and all you do orbits around the meaning you have found in life. When you have purpose, you have peace.