Our whole human condition is enlightened by understanding the addictive process that leads to impurity. In a sense, all sin is a form of idolatry of the false god of self, but solitary acts of impurity are more obvious and intense forms of turning inward, away from God.
Original sin is not an abstract doctrine, but one of the deepest truths about
our human nature. The Catechism states that “ignorance of that fact that man has a wounded nature inclined to evil gives rise to serious errors in the areas of education, politics, social action and morals.” Our own personal history, from infancy to adulthood, is also the history of original sin in each one of us as individuals.