Please don't read below if you haven't played this yet, as what I'm about to write contains some spoilers!
As someone who suffers from anxiety and depression, I can certainly say that they are very much like demons! They sorta pull you inwards and trap you inside your own head, and before you know it, you can become very stuck >.< Sometimes it's easier to just give in and let those demons control your life, but it's important to always remember to fight for your own mental health and a happier life :3
I'm not sure I'll ever be free of my mental health issues, but I'm always trying to fight back against those demons. One day, I might be free of them the same as Joshua!
Appreciate the fact that you've covered the topic of mental health :3