On the top of a mountain looking out with a unobstructed view of the entire mountain range there is one reaction to what you see. We feel awe. That is unless we're blind. In that case, we feel merely cold, wind burnt, and possibly a bit ripped off. Because, if we can see, it doesn't matter what our faith is, chances are quite good that we feel something there that we simply don't feel anywhere else. Certainly, it's not typical to feel that awe when you're driving through Nebraska. The beauty of the mountains is specific and an incredible sensation and for most it is so beautiful they know that God must exist. But, why do we feel awe in the mountains when the mountains are no more created by God than Nebraska? When entering Omaha Nebraska from Iowa the state motto reads, "Don't jam a screw driver through your head. It's only ten more hours to the mountains." If we don't feel awe in all of creation, then why do we feel as though God must have created the mountains? Why don't blind people get the same feeling in the same place? Would God create a world where the blind don't experience the majesty of God in the same way? These are questions that can be answered with metaphysical speculation, but they can also be explained physically.
Archaeologists have found Acheulean hand axes with our hominid ancestors over a span of two million years. These axes are simple tear drop shaped tools made out of flint that vary in size. Anthropologists have studied these tools and often speculated about what they were used for because oddly none of them showed any signs of wear. The observation begged the question, why did we make tools over a two million year time frame and never use them? The answer to this question may be on your left hand at this exact moment in time. Anthropologists believe that Acheulean hand axes were ornamental gems stones that were evidence of a perspective mate's ability to make tools. It's fitting that a heart shape does not resemble an actual heart but two tear drops side by side perhaps in the same way that two hand axes could be displayed. What anthropologists speculate is that over this two million year time frame, the people who could sense beauty in a superior tool maker had a better chance of living because being able to make better tools meant a smart mate and more food for the entire family. As time progressed, those who didn't see beauty in design were out competed or died off as we used our ability to see beauty in man made items and got progressively smarter as time went on.
Concurrently, our ancestors became weaker and weaker relative to other mammals and required more protection from the elements and less competition for food. Our ancestors found clean water in mountain lakes where the water flows down a valley. They found food near the lakes and were protected from major weather by the mountains themselves. This is what the mountains in South Africa provided our early ancestors. But, again, without language to communicate the benefits of living in the mountains, the people that survived were the one's that felt compelled to stay in the mountains. What compelled people seems to be awe. And, across all societies, no matter if a person has lived their entire life in a desert and has never seen a picture of the mountains, if they're shown a green mountain valley with a lake and a stream coming out of the lake, they find it beautiful.
And, the reason you feel God in the mountains is because of a miss association. It's because beauty in nature and beauty in design are housed in the same mental framework in your brain. And so, when you see anything that's beautiful, there is an impulse to attribute a designer even if you know that those things formed semi-randomly over hundreds millions of years as the result of plate tectonics or were, at the very least, no more designed than Nebraska. Even if God created the mountains, if you felt awe because of God's creation, you would then feel that awe everywhere on earth and most people just don't experience that.