It’s all about choices; we can choose to focus on God and remain in His light, or we can attempt to do things on our own, which will likely lead us away from Him into the dark corners of the world.
As long as we remain in the light, our shadow is always there and always a part of us, but if we aren’t looking at it, we tend to forget it even exists. The same is unfortunately true of God; when we aren’t looking at Him, and our attention is focused on worldly things, we tend to forget He’s with us.
When we stand in the sunlight, our shadow is attached to us—a part of us—and will remain so unless we step out of the sunlight into darkness. When we stand in the Son’s light; He is our shadow, He’s attached to us, and will follow us wherever we go… forever.
Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD forever. Psalms 23:6