Those of us who believe in God and who think that such a belief is the most important thing there is have a responsibility to make sure it is the right God we believe in. I mean by this that it is the highest and best representation of divinity to which we give our allegiance. Generally speaking, our belief in God will be modified and affected by certain ideas we might have about God. That is an inevitable outcome of how we as human beings are. At the moment, we are outside God so our sense of him will be to a large extent mentally bound. There may be certain occasions during which we experience something of the majesty and wonder of God but these pass and we are left with the memory which we then adorn with our own thoughts about it. These will necessarily reflect something of ourselves.
Atheism is one of the great evils of our time but it is clear there are two sorts of non-believers. There are those who don't care about God and who may be relieved there is no God because they can get on with their lives without being concerned with someone looking at them. They consider they have greater freedom now, that is to say, freedom to do what their ego wants. They actually have less freedom because true freedom can only be found in God as only he can release us from the constraints of the separated and alienated self.
But then there are those who react against antiquated notions of God. We have evolved intellectually over the last few centuries and some previously held ideas about God may have been outgrown. These people do need to explore a little more deeply and learn to separate divine reality from human notions about it. Nevertheless, it could be said in their favour that what they are rejecting is not God but false ideas about him. This is part of a growing process but it means they may now experience life as without meaning and as a consequence turn to spiritually harmful ways of behaviour. However, show them a God who can satisfy their doubts and they could well return to a more developed faith.
If you are an atheist, is it gladly or reluctantly? If the former, you are a true atheist and that is a problem which one day you will have to deal with. If the latter, then I would suggest you deepen your ideas about God. Many of the beliefs people have about him, both non-religious and religious people, are the reflection of their own minds and do not indicate anything about God as he truly is. God is a mystery beyond understanding of course but perhaps a way to approach him that does not do him an injustice is to think of him as the fundamental 'I' behind all consciousness, the root subject of the universe which reflects him in expression. This 'I' he then bestows on us as our own individual self. We are his children.
Then you must know that God is good. Good must be prior to evil because everything in itself is good. Evil can only mar the good by corrupting or attempting to destroy it in some way. You cannot destroy what has not already been created and you can only make bad things by deforming good things. Thus, the basic driving force in the universe is good.
These two facts about God tell us that the universe is founded on a person and that person is pure good. I don't say this can be proved as first principles are beyond intellectual proof which can only deal with the results of first principles. These just are. But taking them as base reality releases the mind from the cramped darkness of ignorance, opening it up to a spiritually expanded world of light and truth which in itself is a higher kind of proof.
Ultimately, a universe without God is meaningless. The, shall we call him, bad atheist either doesn't think about this or doesn't care. The good atheist does care and that is the potential cure for his ailment. He has rejected God because he seeks truth but the God he rejected was only a human one. If he persists in an honest search for truth, he will find the true God.