Most search engines would have you believe it is the simple ability to display good coping skills during difficult times. Resilience goes much deeper than that. For some people, resilience is almost always an easy thing. Knock them down and they pop right up again. For others, it's not so simple. They struggle and their lack of resilience can cause emotional and physical symptoms. To go deeper into understanding resilience you must examine the psychology involved. To learn more read the article "Psychological Resilience" at Wikipedia.