I think, to know grace exists, you have to experience grace. Until you do, you can't disbelieve in its existence. You don't have to believe in it--the unseen--but you can't disbelieve either. So you table it, until you meet the experience one way or the other.
This experiential system of belief, even if you can't explain it--an encounter, an inspiration, a chance meeting, a dream--protects us from ideology. And, I think, right now, we could use all the protection, and all the grace, possible.
So suspend disbelief for the moment, at least when it comes to fate and grace, unseen hands, unseen forces, and the spirit of humanity. I've felt grace, I've met her, and I know she's here.
Just wait. Hold space, because she's coming.