The Bible talks of casting down imaginations. It's what we are to do with any thoughts that rise up contradicting the Word of God. We are born with incredible minds that are filled with imagination. When imagination is used creatively it can unleash beautiful things. However, when it runs wild, watch out!
Whenever images in your mind start showing up that don't fit in the context of a life lived for Christ, you and I cannot afford to let them develop. In our spiritual "dark room", as we see them beginning to develop, we must cast them down and hurl them away from our lives. We are supposed to take captive those thoughts...demolish them before they demolish you!
I have an exercise that I do when an image is in my head that was not invited and does not belong. I say out loud "delete". In my mind I am pressing a button like the delete button on my computer and erasing that image. Then comes the important part. I immediately place a positive image in its place.
Is your imagination running wild today? Maybe it's time you did some "deleting" of your own. Pull down strongholds and cast down imaginations. It's a great way to start winning your spiritual battles!