Jonathan Edwards (delivered in a sermon in 1733)
"God is the highest good of the reasonable creature, and the enjoyment of him is the only happiness with which our souls can be satisfied. To go to heaven fully to enjoy God, is infinitely better than the most pleasant accomodations here. Fathers and mothers, husbands, wives, children, or the company of earthly friends, are but shadows. But the enjoyment of God is the substance. These are but scattered beams, but God is the sun. These are but streams, but God is the fountain. These are but drops, but God is the ocean."
As it is written, "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 thougths 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 who is from God, that we might understand the things freely given us by God. 1 Corinthians 2:9-12