Sin is, somehow, at the root of all human misery. Sin is what keeps us from God and from life. It is in the face of every battered woman, the cry of every neglected child, the despair of every addict, the death of every victim of every war.
Sin is very important to the soul because sin is what disintegrates the soul; it's what attacks the soul. Sin kind of is to the soul what cancer is to the body.
Sin is protean. It is a cancer that keeps mutating, and just when you think you have killed off one form, it turns out a deadlier strain yet is threatening your heart.
Joylessness may be the sin most readily tolerated by the church.
The only cure from sin is by maintaining a vision of God.