Book excerpt: Unification Thought is the philosophy derived from the Divine Principle of the Reverend Sun Myung Moon. It is a powerful key that is capable of solving any problem, no matter how difficult it might be. This Thought presents a new view of life, of the world, of the universe and God's work in history. It is a principle of integration that can bring different religious doctrines and philosophies into unity, while preserving their diverse characteristics.