This verse is an open invitation for the Lord pierce our heart with truth, not just give us knowledge to process with our mind, but with our heart.  In The Abolition of Man, C. S. Lewis describes “The Chest-Magnanimity-Sentiment” which, functions as the liaison between the intellect and sentiment.[1] Being that it is the chest suggests that it is the “heart” of man.  It is the element that guides the choices we make.