Non-surrender hardens your psychological form, the shell of the ego, and so creates a strong sense of separateness. The world around you and people in particular come to be perceived as threatening. The unconscious compulsion to destroy others through judgment arises, as does the need to compete and dominate. Even nature becomes your enemy and your perceptions and interpretations are governed by fear. The mental disease that we call paranoia is only a slightly more acute form of this normal but dysfunctional state of consciousness. Not only your psychological form but also your physical form—your body—becomes hard and rigid through resistance. Tension arises in different parts of the body, and the body as a whole contracts. The free flow of life energy through the body, which is essential for its healthy functioning, is greatly restricted. Bodywork and certain forms of physical therapy can be helpful in restoring this flow, but unless you practice surrender in your everyday life, those things can only give temporary symptom relief since the cause—the resistance pattern—has not been dissolved.
— Eckhart Tolle