What does this book teach us? Firstly, we can be truly free. There are many born again believers who live in the system of the world, in the world influenced by monastic fortresses, when they are free by the Power of God. It teaches us that there are spirits assigned by the kingdom of darkness to keep us slaves, even when God has set us free. Teach us that we have an enemy who is like a rude lion looking for whom he devours, and teaches us how to overcome him. It teaches us how guilt is the most used instrument by the devil in the church. Keeping the people of God useless, frozen, walking like slaves when they are already free. It teaches us how the decisions we make good or bad bring consequences for good or evil. Reveals to us how to obtain a free mind in Christ. And finally, how to develop the Mind of Christ and live lives full of the fullness of God. Understanding the love of Christ which predominates all knowledge.