The existence of God is obvious. A higher power had to have created us. Some people say that life was created in a mud puddle of compounds that got hit by lightening. But that is not believable because with all of our modern science, we can not create life, from something that has never lived.
Also, look how complicated even the simplest forms of life are. A one celled animal contains hundreds of thousands of working parts, all arranged in the perfect way so that it can find food, ingest food, break it down, build the machinery of the cell that transports vital elements to the right places, excrete waste, do whatever it takes to sustain its life, reproduce, etc.
It's no accident. It would be more likely that a Boeing 747 jumbo-jet, fueled up and ready to go, to emerge from that mud puddle, that was struck by lightening, than a single living cell. And of course, the human body is made up of trillions of cells that are arranged perfectly to suit us.
Look at the iris in your eye, or the veins on a leaf, or the birthing of a guppy. These things are not the product of luck and happenstance. We are the product of Divine creation. There is no other possibility.
Of course we understand so little about God and his creation. But to deny the existence of the creator, is to deny the obvious.