Our job as humans is to hold on to the thoughts of what we want, make it absolutely clear in our minds what we want, and from that we start to invoke one of the greatest laws in the Universe, and that's the law of attraction. You become what you think about most, but you also attract what you think about most. (John Assaraf - "The Secret)
What you put into your MIND is your business, it is a personal choice that we make everyday. Just remember that old computer saying GIGO Garbage In Garbage Out.