We think of faith as having the ability to move mountains (which it can), but the power of faith is as subtle as it is dynamic. The power of faith is relative to how much one truly believes something is possible. If you truly believe with every fiber of your being that you can do something, your mind will find a way to accomplish it
Knowledge is the key. Knowing what action to take or not to take. Doing what others are unable to do because they don't have the knowledge is the key to creating your environment of change. Knowledge also does one more important thing, it can make you less fearful of change.