God's plan from the beginning was that He would indwell man. The only limit that God put on the first Adam was Himself, but Adam chose to move apart from God and His limit into the bondage of sin, living unto self separately from God--which meant death. Sin brought death, but God in Christ Jesus brought us back to His purpose by setting man free from the law of sin and death by the law of the Spirit of life in Christ Jesus. God's purpose can only be realized when we let God the Spirit come to indwell and control our individual lives and His church.
There is nothing natural about what God is doing in our lives and in His church. If we do not give God a place to work and a way by which we may know what He has promised, we can move only in a natural way, with natural results. It is the Spirit that is building us into a habitation for God. When we leave the Spirit and His manifestations out of our lives and the church, we leave God out and have no more than a religion, even though we may call ourselves Christians. The name "Christian" has become almost meaningless in our day, but it can still be a reality that is ours in and by the Spirit.