Who is Playing on the playground of your Mind?

God put this message on my heart a few days ago.
Who are you letting play on the playground of your mind? Is satan allowed to play there as he wills or do you keep the playground reserved for the Holy Spirit only?
You see, sometimes we think that we have to think about whatever thoughts happen to come in our minds. But that is untrue! We have control over our minds and our thoughts. Satan can and will drop thoughts in our minds as he wills but it is our responsibility and choice to whether to "take" a thought by continuing to think about it or by saying it out loud. The Bible says that we must cast down vain imaginations and every thought that exalts itself against God.
We have to think about what we think about. Do you dwell on self-defeating thoughts like, "I'm no good. I'm too fat. Nobody likes me. I can never do anything right, or this is just too hard."? If so, you are letting satan come over to play on the playground of your mind!
I encourage you today to start recognizing when you have a wrong thought and decide to cast it down and replace it with another thought.
I am reading a book by Joyce Meyer called, Power thoughts. She recommends meditating on one power thought per week to retrain your mind to minister life to your body instead of death. When we think on self-defeating thoughts we are actually ministering death to ourselves. But when we think on truth and encouraging thoughts we are ministering life to ourselves.
Her first power thought is, I can do everything I need to do in this life, through Christ. This is based on Philippians 4:13.
Scriptures are perfect things to meditate on. Also, things like, "God loves me! I am accepted in the beloved."
I will probably write a part two for this post soon. For today, start recognizing when you think a negative thought and REPLACE it with a positive one! I will be meditating on, I can do everything I need to do in this life through Christ! Won't you join me?