Romans is a foundational book, providing a believer with the fundamental doctrine of salvation, justification, and positional sanctification through the cross of Christ. Yet, the more I read it, the more I see how the truth it presents is structured to detach and separate us from this world, and prepare us to receive a mystery revelation regarding God's plans for our redemption, to the glory of Jesus Christ.
We are only officially informed of the details of this mystery, in other letters, and in particular, that of Ephesians, but even in Romans, Paul lays out in our doctrine, details that are aimed at getting our minds and focus off of this world and its vanity, and set on the faith that there is something greater ahead, a mystery that is going to be revealed, and that cannot compare to what we currently have here.
So, Romans is meant to draw us away from this world, and activate our faith, so that we can see what God has planned for us from before the foundations of this world (Eph.1:4). Let's have a look at some key statements and verses that prove this point.