Why do so many fear darkness? Is it the unknown? The noises echoing a whisker-lengths away, but unseen? The inability to glance to your left and realize that nothing resides there? Do cats need a constant sign to validate that they are safe?
Perhaps darkness is superior to light. With light, there are an overwhelming amount of distractions and disasters; things that will block your judgement. With darkness, you may be alone, but you're alone with who you truly are. You say you're afraid of the dark? You fear placing secrets in the open without somebody to hide you.