Maybe the best working definition of faith I have ever read-

True faith is not the intellectual ability to visualize unseen things to the satisfaction of our imperfect minds; it is rather the moral power to trust Christ. To be contented and unafraid when going on a journey with his father the child need not be able to imagine events; he need but know the father. Our earthly lives are one shining web of golden mystery which we experience without understanding, how much more our life in the Spirit. Jesus Christ is our all in all. We need but trust Him and He will take care of the rest. Possibly it is because of my own innate dullness that I have found such deep satisfaction in these words of the prophet: “I will bring the blind by a way that they knew not; I will lead them in paths that they have not known: I will make darkness light before them, and crooked things straight. These things will I do unto them, and not forsake them” (Isa. 42:16). God has not failed me in this world; I can trust Him for the world to come. (AW Tozer)

On the evening of that day, the first day of the week, the doors being locked where the disciples were for fear of the Jews, Jesus came and stood among them and said to them, “Peace be with you.” (John 20:19)

John Piper explains what this means for you, now: