Why do human beings believe in things that are not (or cannot) be proven?

Why do human beings believe in things that cannot be proven?

Some may argue that it is simply human nature. My personal explanation as to why, is based on how you are raised, to believe without question or question what you believe. When you are young and you are lead to believe, for example, that Santa or the Easter Bunny is Real, and then you grow and find out that what you believed in isn't real. It may lead to you questioning more later in life. Also, as an adult, it becomes more and more evident that things in life are not as wonderful or magical as they all seemed at first, when you were growing up and had all these fantastical beliefs. And I believe that we, as adults, still seek to find something more. We still want to come out of our rooms on Christmas morning to find Santa Claus putting gifts into our stockings, or the Easter bunny hiding eggs around the house. But while we can accept that these simple beliefs are in fact, nonexistent, we still feel the need for something more, something unexplainable to hold on to, to have faith in. And so we look up, away from our selfish childish desires for more material items, and instead, as contemplative beings, look to our own existence. Something is mysterious when it is hard to explain, or understand. Many people have seen or experienced strange things. For example, people have claimed to have seen creatures such as the Loch Ness Monster or Big foot. Others believe in places like Atlantis and the Bermuda Triangle. Throughout history, people have enjoyed speculating about the unknown, because something has not yet been proven. Skeptics may question if what they saw or believe is real or actually happened. In some cases, events are eventually explained by science. However, many events have remained unexplained after hundreds of years. These unexplained events usually become the basis for myths, and legends. Magical thinking helped primitive man survive in a world that he did not understand. So today, when we have science to explain things, the human mind still holds on to our primitive urges. Who really knows why we believe in the things that have not yet been explained, or proven. Maybe we are clinging to our childhood tendencies. Maybe it is from an experience that we cannot explain in any other way. Maybe its from hearing other peoples accounts when we are at an impressionable age. Maybe its due to our culture, or how we were raised. Science doesn't explain everything, at least not as of yet, but until it does we as the human race will still look to the unexplainable with faith.