A way to explain things no-one can explain(or even sometimes things people can explain) without need for explination or actual proof by saying something along the lines of "faith not needing proof". peolpe then wrote a pointless book in this fictional characters name that not only contradicts itself but in many cases makes no sense at all or can be proved wrong (if it is proved wrong people still pretend it isn't for no reason(see above)). some wierd people then devoted their lives to trying to follow the teachings of this book to get in to the "magical cloud world" it describes.
The arguement for God creating the world because it's so complex boils down to "If it's complicated, a magical cloud being must have made it."
God, the omniscient, primordial and eternal who created man in his own image and therefore posseses a digestive system, sense organs, limbs and other attributes that would be useless to an immortal being. If God came first, what would he eat or walk upon? Why would he have those five senses if nothing to sense yet existed? And if he has 'always' been here, how long did he sit around doing nothing until he decided to invent the Universe? And why? And if he hadn't yet invented the universe, what exactly was he sitting on? Where is he going to exist if there is nothing to exist in? And what is wrong with the idea that we all just expire and disintegrate and rot?