I find it hard to imagine anyone wasting their precious energy worrying about dark possibilities that could unfold when there is so much beauty all around to be mindful of. Yes there are all kinds of evil, horrible things that could possibly occur but I for one do not wish to give these thoughts any energy to grow off of. As you think so shall your reality be. Is that the kind of reality you wish to live in? The two main sources of energy producing emotions are love and fear. You cannot experience both at the same time so the choice is always ours which way we choose to feel.