Answer: psychologically they are interconnected in its emphasis on individality. In Lutheran reformation the salvation takes place because of the faith (something individual and even intimate as soul itself) whereas in Catholicism salvation (which is never guaranteed) is a question of acts, behaviour (which is visible, can be judged and evaluated by other members of community).
Explanation: Some are convinced that later psychotherapy (which did not originate in the southern Europe) is a certain extension of protestant theology (which flourished especially in the northern Europe). Protestantism puts emphasis on intimate link between the soul and God (which does not exist in Catholicism).
