How you define your reality is what you experience, literally, because all things in physical reality are fundamentally neutral, they have no built in meaning at all. You are designed to give life meaning, you are designed to give meaning to different circumstances and situations. That is the gift, that is the power, you have been given by creation as a co-creator. The meaning you give to something determines the effect you get out of it. This is just physics, it is what we call the third law of creation - what you put out, is what you get back.