What is the "power of conviction"?

What is the "power of conviction"?

There is a very simple difference between a belief and a conviction. When people say you have to believe in it, then--in most cases--people think about it. That it will be right or that it will be okay to do certain things. They firmly believe it. Belief is done through your mind or by your mind. A conviction, you know it for a thousand percent. You breathe a conviction, and that's the power of conviction. You don't need any outside confirmation. You don't need even any research to be done, because you're so absolutely convinced that works the way it works. The power of conviction comes from the heart. Belief comes from the mind.