There is a difference between what is metaphorically true and what is actually true. When the way seems rough, it is likely that one is being propelled by a metaphor. Instruction for living is found therein, but not those things that will be actualized in the time and place of this plane. And faith that it will be is misplaced faith, particularly likely to lead one even deeper into illusion.
I was greatly relieved in my college classes in religion to learn that one of the Church Fathers had declared that one need not believe on faith anything that contradicted reason. As my beliefs about Reality have changed, so has my reasoning about it. But the Holy Spirit leads gently and leads us willingly; just so long as He is dealing with a skeptic, so ever gentle will He lead. Now I read in the Course that the Holy Spirit uses reason to undo insanity. (T-21.V.9:1) Reason actually lies in the union of my will with that of the Father.
With these words the gentle pathway back becomes illumined as by a lightning bolt. Perhaps the Holy Spirit needs reason even more than blind faith. If truly blind, one is not using her sane mind, but is particularly apt, perhaps, to follow a will o’ wisp of falsity to its mad conclusion.