Demons, by Imagine Dragons This is a song about a person overcome by there demons, hence the "demon" swirling around them. I put some red in the eyes because of "look into my eyes, its where my demons hide". The white around the mouth part is supposed to be a piece of paper showing a smiling face compared to what is actually underneath. It represents how the person in the song tried to hide it, and in real life, don't we do that to?