People are often satisfied with their life when it goes smoothly, but obstacles continue to appear in their path. It might be the unexpected announcement that their roof must suddenly be replaced, or it can be as horrible as finding out a machine can now do their work. It does not seem to matter what the obstacle is, overcoming it is the goal that must be achieved, and reaching this goal is much easier when a person has a dependable partner in life.
People rarely have the ability to plan for the obstacles in life because they never know what they will be. They can only be prepared for the unknown, and this requires the knowledge of their strengths and weaknesses. If they have a partner, they can also count on that person's abilities to help with overcoming the obstacle. This is why people work so hard to keep a good relationship, and it pays off when they face an obstacle with a partner rather than alone.