When I was a kid I went through a rough patch–lots of strep throat. I remember rounds of antibiotics and shots. The shots worked the best. One big dose of medicine.
That is how I see Jesus. His healing is so profound and complete and wholesome. Miraculous and life-giving.
So when he meets up with a guy who has an army of demons, the authority of his healing is strict and simple–
Mark 5:9-17 (NIV)
Then Jesus asked him, “What is your name?” “My name is Legion,” he replied, “for we are many.”  And he begged Jesus again and again not to send them out of the area.  A large herd of pigs was feeding on the nearby hillside.  The demons begged Jesus, “Send us among the pigs; allow us to go into them.”  He gave them permission, and the evil spirits came out and went into the pigs. The herd, about two thousand in number, rushed down the steep bank into the lake and were drowned.  Those tending the pigs ran off and reported this in the town and countryside, and the people went out to see what had happened.  When they came to Jesus, they saw the man who had been possessed by the legion of demons, sitting there, dressed and in his right mind; and they were afraid.  Those who had seen it told the people what had happened to the demon-possessed man—and told about the pigs as well.  Then the people began to plead with Jesus to leave their region.
The pigs were smart, out for themselves, property, minding their own business, pork bystanders.
Why did the demons want to go into the pigs?
They did not want to get sent back to their master or their chosen home. Even demons don’t like hell.
And pigs aren’t crazy about demons.
Humans invite darkness into their hearts all the time, but these pigs did not. Their panicked suicide is a barometer of how awful the habitation of darkness is.
And the humans? Upset they lost their pigs. They fail to see Jesus is worth all the pigs in the world. They banish the Lord of Life for a few shekels.
Don’t make their mistake. Stay close to Jesus.
He sets the captive free.