Eph1:4 Even he chose us in him before the foundation of the world, that he should be holy and blameless before him.
Do we understand the spirit that God gives to us after we get saved. No because he chose to give it to us before the foundation of the world. He knew our minds also before the foundation of the world. We try to understand our spirit man through our mental facade which we will never be able to do because our minds and our spirit are on two different areas. We also must understand are minds before can understand our spirits.