When we become born again (Christian), usually no change takes place in our soul and body.  If you walked with a limp before you were born again, you will continue to limp afterwards.  If you had cancer before, you have it afterwards.  If you had fear before you got saved, chances are, you are now a Christian that still has fear.  If you had anger, you probably still have anger, although the Holy Spirit convicts you every time you “fly off the handle.”  

Every human being has a God-given gift called the free will. We all have a right to choose or think on our own.  No one can take that from us including satan himself.  So, satan knows he cannot possess us or take total control. The only people who are actually possessed are not born again and they have given their will totally to satan.

Because satan realizes he cannot take total control, he wants to get a little stronghold.  What is a stronghold?  It’s a military term for a portion of territory that refuses to submit to the ruling authority.   The enemy wants to get a little territory under his influence.  It may be fear, rejection, depression, bitterness, revenge, anger also bondage of addiction, lust, pornography or any type of perversion. These strongholds often begin when we are children.  Our environment, the things we were exposed to and our inherited bloodline determine what these strongholds are. They start working on our soulish area (our mind, will, emotions, and our memories, ).  These oppressions can become so strong in our lives that they hinder our Christian walk.  They split marriages and cause division in our homes, churches and businesses.  

Many Christians don’t acknowledge demonic influence, yet these unseen forces are working in their lives.  They just can’t get the victory.  Ungodly attitudes and actions are not the fruits of the Spirit.  They are works of the flesh, and in many cases there is a demonic spirit behind them.  When people keep falling into the same trap over and over again and cannot get the victory over it, that is generally caused by demonic oppression.  This is not from God.  There is a demonic force behind it.