During eons of evolution, from the simplest of living forms to the most complex, there has always been the day to day struggle to protect oneself. In our highly evolved cooperative social structures, this survival instinct has gone through evolutionary changes. Many of us no longer lack food, water, clothing or shelter; nor do we regularly face life threatening danger. As a result, the protective energies have adapted toward defending the individual psychologically, rather than physiologically. We now experience the daily need to defend our self concepts rather than our bodies. Our major fears end up being with our own inner fears, insecurities, and destructive behavior patterns and not with outside forces.

–from the book “The Untethered Soul”