Belief is a tool that, if used effectively, can be used to manipulate ones own reality, causing the exterior world to conform to the interior world. It is one of the most significant secrets of successful magick. As surely as an optimist and a pessimist see the same world in two conflicting manners, painting their perceptions in the color pallets of their own choosing, one who controls ones own belief system can control ones own reality, even the realities of others. This is precisely what religions seek to do by imposing their own particular structures of belief and dogmas onto others, they seek to control others, and control is power. By controlling your own belief you can wield the very same power that religions have over others, internalizing that power for yourself. Power Over becomes Power From Within.
The Wizard molds his or her own beliefs to serve his or her own needs, constructing their own belief systems and world models, coloring their environment and affecting glamours as they see fit. In order to perform effective magick one must first possess the will to change the universe and then evoke the necessary belief to mold it according to ones desires. Believing in what one is doing provides the impetus for success. If you believe in yourself and what it is that you are doing you will increase your chance for success and the degree to which you succeed. Positive thinking will reflect upon you positively the same way negative thinking will reflect negatively.
To accomplish your goals in life and to attain your promised DOOM you must BELIEVE. Believe in what ever ridiculous nonsense and absurd fancy you choose to believe in, just make sure that what you believe in is what is best for you. Commit yourself fully and believe unequivocally in yourself and what you are doing and measure your success on a scale of your own design. Shine on you crazy diamond! Shine on towards your own DOOM!