The scientific explanation is quite clear, however, it cannot be accepted by a true-believer, so it’s a waste of time presenting it here.
Occam, the challenge is out to you too, you know. Produce the “scientific explanation” for how evolution has evolved our human brains to process spiritual phenomena if there is no spiritual phenomena there to process. Produce the “scientific explanation” for why any animal species successfully meeting all environmental challenges would devote so much time and energy into pursuits over non-existent things that, according to atheists, could not possibly influence anyone because they don’t exist. Yet here we are, 40,000 years later and as was pointed out, in most every society on earth human beings are honoring nothing according to atheists with massive buildings and many many of them, and cultural artifacts galore. Atheism smears human beings and human life by trying to rob people of the spiritual dimension obviously there as evolutionary response shows in most every human brain but lacking functionality in the atheist disability. Which atheist egos cannot stand to hear, the typical fundamentalist response, as we see once again, no “scientific explanation” for the above physical evidence for spiritual reality affecting human life. It’s simple: just answer these questions I posed and don’t divert the discussion with generalized atheist propaganda trying to be substituted for a reasoned argument. I want to see real answers if you’ve got any to these specific questions.