Is it difficult for you to believe in things you cannot see, even, or especially, if your life depends on them? Your life depends on receiving oxygen in every breath. What does it look like? The skeptic and unbeliever have this dependency as much as you do, and they cannot see it either. It is no accident that I said that I created man from the dust of the earth, and then breathed life into him. You have heard of artificial respiration. This was not artificial. It was spiritual respiration. The wind is a Biblical image of the Spirit. You cannot tell where it comes from or where it goes, but your life depends on this as well. If you can depend on invisible things in the natural world, how much more can you depend on me?