We use affirmations from different sources as well as those we create simultaneously within our life. For instance, if we had an onset of a physical malady we would use Louise Hay's "Heal Your Body" little blue book, to look up the probable cause and the appropriate affirmation. Saying the affirmations will allow for the emotional/mental cause to surface for you. You can then make the conscious choice to release it or to embrace it. Saying affirmations when something horrific shows up in your life is letting God know you are listening for direction. And you will get it.