Dark and light represent good and evil, peace and war, pure and tainted. Everyone has both good and bad inside of them. You cannot ignore the dark side of you, but you also cannot deny the light. And it’s alright to have some darkness. Darkness means that you have survived a war. You’ve loved and you’ve lost, and most importantly, you have lived. This world is too cruel to let someone be perfectly happy with only light to guide them. There will always be darkness, but in the end, your light will always win.