Then something can come through. The only way you can know if this is true is to test it. If you feel you need to prepare for a difficult meeting say with your family use the time to clear yourself of anything that keeps you from being present. Acknowledge your fears, and recognize that they are useless and unnecessary. Part of what undoes us is the belief that when we get to the moment we will be insufficient, that we wont have what we need.
Fear is weakness.
We perpetuate fear by constantly anticipating the next moment rehearsing the future and replaying and regretting the past. All this perpetuates weakness. Strength is found in the moment. We live our whole lives before and after. But the moment is the only thing that counts.