Galatians 4 - Are You a Son or a Slave?

Chapter 4 of Galatians deals with the question are you a Son or a slave? If you are under the law you are a slave to elemental things like days or bones or animals (do not handle do not touch etc.). If you are under idolatry then you are under slavery to a piece of wood or stone... To be a Son is something totally different. The Spirit of God's Son cries in our hearts Abba, Father! We are a Son of God if we are saved. If we turn to the law or to some other form of bondage, we are not a son, we are not even saved, we are a slave.