It revealed what was hidden. It took care of the serpent. If you really want to find out what is in your life, the unseen things, the hidden things, then you have to expose your life to the fire of his presence. Paul went to Philippi full of the Holy Ghost fire and Lydia was saved. Paul turned around and commanded the spirit to come out of her and it left.
Some people only pray enough to sedate their conscience that they have prayed.
What we need to do is to pray until the fire begans to burn. It may surprise you what is really laying below the surface of your life but anything that rears its ugly head the fire can take care of. The Bible talks about the refiners fire.