It is difficult to explain the existence of God in science.
But life is really wonderful, it is hard to imagine life is a natural evolution.
Actually, the thing that is difficult is having a creative imagination. People believe what they have been told.
Isn't it very obvious that complexity doesn't come out of the simple? The world and universe are complex around us. If that happened to be all there was, we might consider it to be the norm, and that it were simplicity as well as complexity. But that is not all there is.
Consider your smartphone, or the internet. Or remember the automobile?
The first guy who came up with an automobile might have done it reasonably much alone. He might have built the whole thing from scratch, alone. But the modern car, a thing that is far more complex than the original automobile, was only designed and built after thousands (maybe hundreds of thousands) of people figured out all the various aspects of the materials and technologies that go into a car. And when this was done, it still took a lot of people - not one person alone - to put everything together so that we can have cars.
This shows us the complexity of nature. How? We have the ability to manipulate "things" enough to imitate nature a little. But we are far from making something as complex as real life. And even if we kick-started some chemicals into a rudimentary form of life, we are still billions of miles from creating the complexities of an ecological system that can reproduce the quantities and varieties of life that we find all around us in nature. And all this is in the face of a nature that is dying as species die out right and left.
Whatever made complex life, must have been way more complex than life is, and way more complex than we are. If we hadn't started inventing complex "machines," we might have a hard time understanding this. But the ancient peoples understood. That's why they had all their religions. They were seeking God, a God they found necessary to exist simply because of the not so complex machines that they made.
The complexity of design that we have made with our technology, has blinded us to the fact that our technology is still exceedingly low on the scale of technology when compared with the technology in nature. We feel proud that we have made such great advances. We forget that our advances are almost nothing in light of what there is to advance to.
The thinking we should be doing is to find the God who made the technology of the universe. Rather we go about trying to deny that He exists. How retarded we have become in our complexity.
