It is your conscious Presence that breaks the identification with the pain-body. When you don't identify with it, the pain-body can no longer control your thinking and so cannot renew itself anymore by feeding on your thoughts. The pain-body in most cases does not dissolve immediately, but once you have severed the link between it and your thinking, the pain-body begins to lose energy. Your thinking ceases to be clouded by emotion; your present perceptions are no longer distorted by the past.

Eckhart Tolle

from A New Earth: Awakening to Your Life's Purpose