Anything and everything we experience is a function of what and how we think. How we think determines our feelings and behavior. How we behave determines the nature and quality of our lives. This also means that any emotional investment (i.e., feelings) that are attached to a particular thought pattern will resurface each time the pattern is engaged or entertained. To neutralize and eventually eliminate an unconscious, unproductive pattern of thought and the associated feelings, a steady stream of new thoughts must be introduced.