Air and gravity can’t be seen, yet they are real.
So is our Father. But those who believe are blessed.
John 20:29 (KJV) – Jesus saith unto them, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.
Get It or Get Got! 
I have thought the same thing, that atheists accept something like gravity, although they cannot see it. In same way, we cannot literally see God right now, but like we feel the effects of gravity, so we feel the effects of God.
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Exactly! Amen!
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