The human body knows when it deserves urgent care. The doctor comes later. The spirit has needs too (none if we believe in immortal souls and perfectly fit persons, believers and nonbelievers healed by God) and it has healing and maintenance routines. Conscience, experience and faith build our spiritual health and fitness.   Believing what God has promised is more than sufficient.  Instead we have thought that positive thinking can replace the abject negativity of human righteousness (performing what we think God wants) we have the spiritual equivalent of a contagious and fatal disease. To sum up in simple terms, we suffer from icanitis, and tacking on “through Christ who strenthens me” does nothing to hide our proud foolishness.