“You do not doubt that the body’s eyes can see. You do not doubt the images they show you are reality. Your faith lies in darkness, not the light. How can this be reversed? For you it is impossible, but you are not alone in this.” (ACIM, W-91)
We are not alone. In the terms of A Course in Miracles, we always have the Holy Spirit with us—there, guiding us, if we are willing to listen. And we don’t really see anything except illusions with the physical eyes. We see truly when we have vision that is not of the physical eyes. Then we are not seeing “images” at all, but true reality.
If we can just remember that we are not alone, even when all around us the world seems to be disintegrating, then we will be reassured always. Even if the outer world weren’t in disarray (which it is), then our surrounding world does tend to fall apart from time to time. Then we need to keep the faith, to know that our guidance is true, that there is a legitimate, good, way out. And we are certain that all of our worries are usually borrowed troubles.
We need to doubt that the body’s eyes see truly. When we let that doubt in, we are primed for seeing with real vision. We see the intangibles that are all around us, even when things are going badly. We can, once again, see truth, beauty, sunlight, a beautiful morning, love, the affection that we get from our most significant others. We know, most of all, that we are all in this together. We don’t lament our lot in life any longer.
And it is no mystery why we are healed.
MIRACLES EACH DAY 
Beautifully written!