We are all familiar with scars: remnants of some event in the past that left a mark in the present. There are physical scars: from that time you fell from your bike, or when you got burned after accidentally touching the oven. Sometimes, it is also psychological. When someone you trust betrays you in the end. Hearing vitriol from others that is directed at you.
Whether manifesting physically or psychologically, all scars have this in common: they affect our conscious and subconscious behavior from that moment on.