Insanity is said to be trying the same thing over and over while expecting a different result. When we fail, we should learn from and build on it. When we stop learning from our mistakes, it is then we have truly failed.
Star Wars And Our Identity Issues
Luke and Leia Skywalker were separated at birth but years later they had an inherent feeling that they were connected. Eventually they found out their identities and it just made sense. In the same way, we were created to be complete when reunited with God. And when we finally realize that, two things happen: life begins to make sense and we begin to feel whole.