"I do not know how to make a distinction between tears and music", said the nihilistic philosopher and thinker.
The hardened heart is the result of a slow and silent decay being caused by life's many painful and disappointing moments. Nietzsche is the ultimate example (at least in word) of this hardening; a brilliant man reduced to death by insanity.
So it is for the Pharisee; the slippery slope of cynicism, sarcasm and opinion. The Pharisee's world of judgement and self-righteousness becomes what defines him. He becomes an island unto himself, and no one is allowed to vacation there. In time, no one really wants to visit there. It is after all, a very dull and dreary place.
The Pharisee brings himself to the point where "tears and music" gel and eventually dissipate; emotion is nullified. God is an ogre, and we are the worms he devours. The man who was once mystified by the love of God forgets his First Love, and over time, silently and subtly, is reduced to a walking opinion that no one really cares to hear.
The Pharisee becomes irrelevant.
"As for those who seemed to be important—whatever they were makes no difference to me; God does not judge by external appearance—those men added nothing to my message." - The Apostle Paul