10. The fourth state is when he is moved by love and enlightened by faith. Previous to this he did indeed utter pious words and bring forth good deeds, but he did so from a state of temptation and anguish, and not from faith and charity. Therefore the latter are now kindled in his internal man, and are called the two great lights.

Being "filled" means being endowed with a spiritual quality. When the material in question is good -- water, food, people who represent good things, etc. -- it means getting a desire for good and an understanding of truth from the Lord. When the material is bad -- dust, flies, emotions like despair or terror, etc. -- it means being overwhelmed and enslaved by the desire for evil and the false, twisted logic that supports it. There are a number of references in the Bible to "filling the hand," which has a specific meaning and is dealt with separately.