A Definition defines a thing as definite.
Whatever is definite has a finite value.
A finite value separates a thing from everything else.
Two separate things with a similar finite value have no distinction.
They have no value that is distinct from each other.
A Distinction allows two similar things to each have a distinct value.
Sharing the same value is divisive.
Having your own value is expansive.
I share the values of humanity in a divisive way.
I share my own value with humanity in an expansive way.
By definition, I am a human being similar to all other human beings.
By distinction, I have my own distinct set of values, attributes, attainments & qualities as well as my own uniquely distinctive vision, mission & purpose that is my individual destiny in life.