We seek solutions and answers, but none come. And then, from somewhere, seemingly nowhere, an answer takes shape. Very often, the solution comes from seeing the situation the way it really is and discerning new possibilities for action. In the above verses from Parashat Vayera, God opens our eyes and renews our ability to discover. Discernment is the ability to see heretofore unknown possibilities.
Faith is the belief that such new possibilities are there for the seeing.
Jewish faith assures us that the One who helps us see new possibilities will be there with us when we are in desperate need of that kind of vision. In the movie Field of Dreams, long-departed baseball greats return to take up the game in an Iowa cornfield. Initially, only the farm family can see the men, but in time, others discern their presence. The truth is that they had been there all along. Just because one doesn't see something doesn't mean that it isn't there.