When I was 4 or 5, we lived near a steel mill. At night, when the rest of the town was quiet, you could hear the noises in the wind, and anyone who lives in a big city and walks around at night when there's no one around knows exactly what I'm talking about. It's like wind, but it seems like it has a purpose, like a sense of foreboding. Anyway, my mom used to tell me stories about how at night, the clouds overhead (red/purplish clouds at night light up by the fires in the mill) were alive, and that they could see in the hearts of every person whom they passed over, and that they could follow that person around if they were bad. I believed it for years.