FAITH
What is faith? Faith is believing in something we cannot see. Many think having faith in anything is stupid because they believe there's no proof of it being real. What I have seen having faith does is that it opens the door for God to prove His reality. I believe God created the world as He did for a reason. The reason being that we have to rely on faith which isn't always easy so that we don't think we know everything and have to put our complete trust in Him. He wants to poor out Himself upon us so much but He wants us to seek Him and have faith so He can blow our minds when we do see His glory and power.
"....Listen to me, Judah and people of Jerusalem! Have faith in the Lord your God and you will be upheld" 2 Chronicles 20:20