Why do we have darkness in our world?

Well before answering this, we must have a firm grasp on what darkness is. It can take many different forms, and has many different meanings to different people. First off, there is the standard, and most logical factor; darkness is an area which is absent of light. This is caused by the science which involves light and colour waves and how the are absorbed or reflected off different surfaces, but overall it's a very dull and boring thing to talk about, so we move on. Next up, is the fact that darkness can be used as a sense of unknown. For example, if your teacher we to instruct you as to how to write an essay, but didn't tell you how to quote, your knowledge of quoting in regards to essay writing would be in the dark. Needless to say, this makes knowledge, light, and a very powerful tool against darkness. Which brings us to our third and final point which is that darkness is often used in the sense of moral values. There is always a struggle between what is good and evil, light and dark. This is due to the fact of the ever shifting list of priorities in regards to how we see ourselves morally.

Now, this brings us back to the original question, of "why?". Well, that is quite simple in fact, if you recall back to what we've just gone over. In the first sense, it's scientific, we have legitimate proof to show that there will always be light and darkness to do the very fabric of nature, and we can't change that because we can physically bend light without breaking the laws of physics. Secondly, the idea of knowledge. We have this area of darkness which shrouds our knowledge which is light. There is but one simple key to this, knowledge itself. No one can possibly ever know everything that there ever is to know, it's just impossible. So there is no way to remove this sense of darkness around things we don't know, and perhaps never will know. Third and finally, the sense of moral values. This one is a little bit more tricky, and you have to be open minded to accept the idea. Think of it like this, everyone has certain values, and certain moral instincts that go with those values, correct? And yet, we all want to make a world free of all problems, where everything works out perfectly, in the sense that we would then have a perfect world, correct? Well then, if everyone has different values, and different morals, that they feel should be prioritized in this "perfect world" then how do we create perfection? Something that suits everyone's needs and desires? It's impossible, therefore, there will always be darkness. But look on the bright side, there will always be light to in contrast with this darkness.