This is essentially the argument for the soul: it holds reality together, it is my offscreen director, my presiding intelligence. I can think, talk, work, love, and dream, all because of the soul, yet the soul doesn't do any of these things. It is me... Everything that makes the difference between life and death must cross into this world via the soul... Soul is a connection between the world of the five senses and a world of inconceivable things like eternity, infinity, omniscience, grace, and every other quality unmanifest.
Peace always begins within each of us. Our ability to create in the world depends on our ability, first, to work to create peace in our own lives. It's much easier to advocate peace on Earth than it is to be able to bring peace your own home. Or your own heart.