Relationship represents the greatest challenge for the individual, for it is only in relationship to others that unresolved problems still existing within the individual psyche are affected and activated. Many individuals withdraw from interactions with others, so they can maintain the illusion that the problems arise from the other person because one feels disturbance only in his or her presence, and not when by oneself. The friction that arises out of relating with others can be a sharp instrument of purification and self recognition if one is inclined to use it.