You are complete. You are the crown jewel of creation. You are absolutely perfect this very moment. You have eaten from the Tree of Life and you are full - that is, until you compare yourself to anyone else.
The instant you engage in comparison, you eat from the Tree of the Knowledge of Good and Evil, Us and Them. You have fallen into Sin.
What is Sin? To believe that any creature in heaven or earth could possibly be better, worse, or in any way comparable to You.