Anxiety possesses all the qualities of a reaction of fear, except that it generally has no clear object to derive. Both fear and anxiety relationships are characterized by a rapid activation of the system that is prepared to deal with an emergency situation. In the face of the reaction of fear, one can act more easily, since the threatening object is identifiable and can be withdrawn or avoided. In the case of anxiety, the system becomes alert to an emergency, when that emergency is not yet identified. Without an object, it is difficult to know what action to take and our system is never completely sure when it can declare the emergency to be concluded. Thus, we can consider that anxiety is an energy without goal or objective.