When we face God directly, we cast no shadow. His light fills us, not as something we possess by nature, but as something we receive by grace. We become almost transparent, and what passes through us is not merely our own goodness, but His love radiating outward.
But when we turn from Him, even slightly, we become more opaque. The light has not changed. God has not withdrawn. Yet we have altered our relation to Him. A shadow begins to fall, and that shadow can touch others just as surely as love can. The more we turn from God, the less His light passes through us, until, if we turn far enough, we cast only shadow. Not because the light is absent, but because we are no longer turned toward it.
This is why Christ says, “Abide in my love.” The command is not merely to admire the light, but to remain in it. To keep facing Him. To turn back when we have turned aside. To let His grace make us transparent again. That fits well with the saints: the holier they become, the less they obstruct God. They become more truly themselves, but less self-enclosed.
And perhaps this is why our weakness remains such a mystery. Concupiscence is not good in itself, but God permits it to humble us. It teaches us that we cannot turn fully back to Him by our own power alone. We must will the good, yes. We must keep His commandments. But even that willing must be healed, strengthened, and lifted by grace. The Christian life is therefore a continual turning: away from sin, away from shadow, and back toward the light that was always there, waiting.
