I use the word “God” in an impersonal sense, like Einstein did, for the laws of nature, so knowing the mind of God is knowing the laws of nature. My prediction is that we will know the mind of God by the end of this century.
The one remaining area that religion can now lay claim to is the origin of the universe, but even here science is making progress and should soon provide a definitive answer to how the universe began. I published a book that asked if God created the universe, and that caused something of a stir. People got upset that a scientist should have anything to say on the matter of religion. I have no desire to tell anyone what to believe, but for me asking if God exists is a valid question for science. After all, it is hard to think of a more important, or fundamental, mystery than what, or who, created and controls the universe.
I think the universe was spontaneously created out of nothing, according to the laws of science. The basic assumption of science is scientific determinism. The laws of science determine the evolution of the universe, given its state at one time. These laws may, or may not, have been decreed by God, but he cannot intervene to break the laws, or they would not be laws. That leaves God with the freedom to choose the initial state of the universe, but even here it seems there may be laws. So God would have no freedom at all.

The glory of creation is in its infinite diversity.

Why does He create the universe? What is the content of the love of God for His creation? Well, we have the frank answer of the Hindus that the godhead manifests the world because of lila, which is Sanskrit for “play.

Now, as there is an infinity of possible universes in the Ideas of God, and as only one of them can exist, there must be a sufficient reason for God's choice, which determines him toward one rather than another. And this reason can be found only in the fitness, or the degrees of perfection, that these worlds contain, since each possible thing has the right to claim existence in proportion to the perfection it involves.

God's nature is love, and since God loves creation, it follows that what is genuinely given and purposed by that love must acquire some right in relation to the Creator.

God wanted to make heaven and the earth is that heaven. Nowhere in the universe there is so much love, life, beauty and peace. Enjoy your stay with the fellow beings.

Now, since in the divine ideas there is an infinity of possible universes of which only one can exist, the choice made by God must have a sufficient reason which determines him to the one rather than to another. This reason can be found only in fitness, that is, in the degree of perfection contained in these worlds. For each possible has a right to claim existence in proportion to the perfection it involves. Thus nothing is entirely arbitrary.

When God loves a creature he wants the creature to know the highest happiness and the deepest misery … He wants him to know all that being alive can bring. That is his best gift…. There is no happiness save in understanding the whole.

We actually have a candidate for the mind of God. The mind of God we believe is cosmic music, the music of strings resonating through 11 dimensional hyperspace. That is the mind of God.

...if God had wanted to put everything into the world from the beginning, He would have created a universe without change, without organisms and evolution, and without man and man's experience of change. But He seems to have thought that a live universe with events unexpected even by Himself would be more interesting than a dead one.

The universe is God’s son.

God is not so cruel as old men tell us: nor will God cut off the gentle soul of a man for loving a woman or a girl. Three things are loved by the whole world: women, fine weather, and good health, and girls are the fairest flower in Heaven next to God Himself.

First the Gods adore.

God Is Love