Have you ever seen a sunrise or sunset? How about a cloudless blue sky? Have you ever stood silently in the darkness or breathed in fresh, clean air?
The answer to all of these is "NO." The sun doesn't rise of set. The earth turns and reveals or hides the sun from our vision. The sky is not in the slightest blue. It is colorless. It only appears blue as we look through the atmosphere (although a case may be made for the sky not actually even existing at all). Darkness is simply our word to describe the absence of light. The air we breath is made up of Nitrogen, Oxygen, Argon, Carbon Dioxide, Neon, Methane and Helium - in various percentages.
Nevertheless, there is nothing quite like a sunrise or sunset. A cloudless sky brings joy to our hearts. Darkness makes us trip over things and air with a bit more oxygen than "normal" is exhilarating.
Faith is believing something exists and reveling in that existence even when the so-called "facts" say the object of our belief isn't real. Does the sun rise? Is there darkness? Can air be fresh and the sky blue? Of course! All of our senses tell us so. Our "gut" tells us so. Faith is in what IS when our tiny words can't describe it.