Consciousness

It is always consciousness that determines the state of mind you are in. Then all of your actions take place within the context of this state of mind. These actions refer to all of your reactions and all of your inner thought processes. These inner thought processes are what open up in response to your changed way of thinking.

The question I am most often asked about this kind of thing is 'how do you build certainty in your mind?' Your feelings are the building blocks of certainty. Most notably your good feelings.