My entire life I have struggled to understand the power that my emotions have over me. We would like to believe that we are rational beings with emotions, but we are actually emotional beings who rationalize. The big decisions in our lives are all emotional ones. We use our intellect to try and justify what we have decided, to others and ourselves.
I find this reality to be deeply disturbing but it is based in the design of the human brain. Our brains are a true work of art. The entire system is meant to be robust and function in a wide variety of environments.