If you take off shoes and leave them upside down, its bad luck because the “soles are pointing at god, which is dirty”

Whenever anyone in my informant’s Syrian family takes off their shoes, if someone leaves them upside down, someone else will flip them over. He claims that this is an old superstition that dates back before Arabic exposure to English so the fact that sole and soul are homophones is a coincidence. This saying emphasizes the need for cleanliness as god is always watching.