Are you free, or are you a machine that suffers from a delusion that it's free? Free will is perhaps the most important subject of all because if we are authentically free, scientific materialism is ipso facto false, and the world is in urgent need of a revolutionary paradigm shift. This book shows that free will has a most unexpected advocate – mathematics. Only in a mathematical universe can we be free. Only in a mathematical universe can we have a soul. And in a mathematical universe, free will is much better understood as will to power, and to have an intimate connection with cosmic symmetry and "God". It's all in the math!