Both within the family and without, our sisters hold up our mirrors: our images of who we are and of who we can dare to become.
Sisters define their rivalry in terms of competition for the gold cup of parental love. It is never perceived as a cup which runneth over, rather a finite vessel from which the more one sister drinks, the less is left over for the others.
The desire to be and have a sister is a primitive and profound one that may have everything or nothing to do with the family a woman is born to. It is a desire to know and be known by someone who shares blood and body, history and dreams.
Comparison is a death knell to sibling harmony.