Letting go greatly facilitates the power of affirmations. An affirmation is a positive statement. Its power is limited by the fact that, either consciously or unconsciously, we have multiple negative programs that are saying the very opposite thing to the affirmation. You can discover this for yourself by noticing that, as you write affirmations, your mind comes up with, “Yeah, but…” It is these “Yeah, buts…” that limit the power of the affirmation and reduce its effectiveness. If you surrender the obstacles to the affirmation, you will notice a rapid increase in their effectiveness.
The Ego is Not the Real You, Part II, pg. 51-52