I read a book by A.W. Tozer and he used this analogy that I often think about.
God did not give us eyes to hear how beautiful a song was. He gave us ears for that. He did not give us ears to see how beautiful a sunset is... he gave us eyes. In the same way, God did not give us a brain or intellect to understand the things of God. He gave us a spirit!!
"'What no eye has seen, nor ear heard, nor the heart of man imagined, what God has prepared for those who love him'- these things GOD HAS REVEALED TO US THROUGH THE SPIRIT. For the Spirit searches everything, even the depths of God. For who knows a person's thoughts except the spirit of that person, which is in him? So also no one comprehends the thoughts of God except the Spirit of God. Now we have received not the spirit of the world, but the Spirit who is from God, that we might understand the things freely given us by God. And we impart this in words not taught by human wisdom but taught by the Spirit, interpreting spiritual truths to those who are spiritual. The natural person does not accept the things of the Spirit of God, for they are folly to him, and he is not able to understand them because they are spiritually discerned. The spiritual person judges all things, but is himself to be judged by no one. For who has understood the mind of the Lord so as to instruct him? But we have the mind of Christ."
Wow! How cool is that? We have the mind of Christ. Because of the Holy Spirit, we are able to understand the things of God, the things of the supernatural.