I'm a psychological counselor.
Daily contact with people who "see monsters" - they say something is sitting on their shoulders, eating memories, eating fear, eating anger, eating everything.
I thought it was an illusion.
Until one day, I saw it too.
A girl has a black fog lying on her shoulders. The fog is laughing and eating her grandmother's face. She wanted to remember, but she forgot more and more. I wanted to save her, but I found a shadow standing behind me - exactly like me, waiting for me to look back.