When Jesus entered into that region of the Gadarenes, those demons knew he was there. When he came near, they were afraid and begged mercy of him. When Jesus enters into the region of our lives, let me tell you, the demons knows he's there. He has the power to deliver us from even the worst of situations, thousands of dilemmas "Legion". He can help us think straight and have our right mind about us.
II Timothy 1:7 "For God has not given us a Spirit of fear, but of love and power and a sound mind."
Let Jesus send your pigs a packing, taking every tormenting demon with them!