The Gerasene Demoniac

I'm deeply enjoying reading Mark. The proof of Jesus' authority as God is so blatant. So fulfilling to my but weak intellect.

The story of the Gerasene Demoniac (Mark 5) has always intrigued me, but for the past week, I read and reread it, and can't get enough.

So it appears that while "THEY" (the disciples' boat as well as others) had been sailing to Gerasene, Jesus himself is the only one to step out of the boat, for obvious reasons. This guy is a nut. A dangerous nut. Ain't nobody gonna try to take him on.... except Jesus.

The man lived in the tombs. naked. He could not be bound with CHAINS because he broke them. He screamed and gashed himself with stones. This man was in horrendous torment.

This story brings about many questions in my mind.
Question 1:

How does a person allow unclean spirits to enter them?

v. 9 says the name was Legion because there were many spirits. Enough to "fill" a heard of 2000 swine. How does a person allow, not only one but 2 thousand unclean spirits? Who gives the permission for this to happen?

Jetting back to v. 7, the unclean spirits speak

"What business do we have with each other, Jesus, Son of the Most High God? I implore you by God, do not torment me?"

Question 2:

What does Legion mean by "I implore you BY GOD?" Is he asking permission from the Father at that point?

Question 3: Legion is asking (v. 10) not to be sent out of the country. What country? What does this mean?

So after all these questions arise, (anyone please feel free to give me your insight on this stuff.), what happens to the man is beautiful.

It's apparent that when the disciples and other boatloads of people saw what had happened, they felt it safe to get a closer look. They found that the man was clothed. Jesus restored his dignity. They found him conversing with Jesus. Man, I wonder what they were saying! I mean, what would you say to someone who rescued you from years of self-inflicted torment and shame?

What DO we say to someone who has rescued us from years of self-inflicted torment and shame?

We say, with the restored man, "please don't leave our presence, Jesus!" "Let us go everywhere with You!"