I love the concept of sin because if sin exists, so does integrity. Correct action. A superego to the id. Water to quench the fire and light to purge the world of shadow.
A white to black.
Only white is the excess of color whereas black is the lack of it.
And both do not exist singlehandedly.
So maybe sin is just a collection of mistakes and integrity is all the right steps we took, blindfolded. Babies can only see a few colors; as we age we begin to recognize shades. We recognize that shadows are the products of light.