A really good article on how religion came to play such a big role in human life.
Be warned, the article is at Suicide Girls, which is not NSFW depending on if you click away from the article.
First paragraph:
The Human NicheHumans, like all other living beings, are a product of four billion years of evolutionary processes. We have been shaped and pounded by the rhythms of our planet’s geology and climate as well by the continual interplay among biological organisms. You exist because eons of your ancestors, from bacteria to primates, struggled and reproduced successfully. The genes that reside in each and every one of us are the ones that helped our ancestors not only to survive, but to out-reproduce their competitors. And as improbable as it might seem, you are here through the success of billions and billions of generations.
Every living species on the planet – from cabbages to whales – has gone through this process, and evolved to fit a particular niche. Our human niche just happens to have emphasized brains over brawn, which has given us language, creativity, curiosity, and the most complicated social system of any species. However, our incredibly powerful brain is locked in a continual battle between reason and ancestral fears. This conflict helps us understand why religion has held such a grip on humanity and why reason must still fight to be heard.
Our ability to solve complex cognitive problems evolved over our long, tenuous, evolutionary history. Many adaptations that squeezed through the sieve of environmental constraints have led up to more and more complex brains. This culminated in fine-tuned software for negotiating the competitive social hierarchies that have been a crucial aspect to primate, especially human, evolution. We humans evolved the uniquely complex communication system that is language, and it in turn drove the evolution of more and more complex social interactions.