Corporate Cleansing (Isaiah 6:1-13)

Isaiah the prophet is called into the most holies of places.  You would think that he would be overjoyed to encounter the full holies of our Lord, but he is overwhelmed by his placement in the true temple.  Why is Isaiah so upset and concerned?  This is a prophet set apart unto the Lord and so what does he have to worry about?  What is the Lord ultimately going to do to set aside this man’s fears, but at the same time equip this man to come into HIs holy presence?