Holiness is more than a theme or an idea.  It' sthe bottom line of God's redemptions of mankind.  God has saved you: youare justified with God by the cross of Christ, and his resurrection.  God is sanctifying us daily, moment by moment, conforming us to his image.  Not for kicks, not for routine, but with purpose.  He's grooming and preparing for himself a righteous people.  A people to be about His kingdom work on earth, and he seeks to save all mankind.