Capacity of human beings to overcome physically and emotionally to the difficulties of all kinds in life; the worst difficulties are the emotional ones, like the death of a loved one that breaks us heart. This recovery is important to the passage of time and the possession of these values: autonomy, self-esteem, coping, conscience, responsibility, optimistic hope, smart sociability and tolerance to frustration. Has taken this term the psychology of the Sciences of nature which defined it as the resistance of materials to bend without breaking, and to restore their status and original form.