What is a Stronghold? - 2 Cor 10:4

What is a stronghold? Why is it that certain hangups seem to have a life of their own, they pull us down ever so strongly? While we can choose to not give in to them, there is a continual pull to do the wrong thing.  Follow this link to see the notes to this evening's sermon. http://pastors-sermons.blogspot.com/2013/03/what-is-stronghold-2-cor-104.html