👉 In Jewish tradition, an opisthodomos is a malevolent spirit that is said to reside within the body of a person who has committed a grave sin. This spirit can manifest as various physical symptoms and may cause harm or suffering to the individual's loved ones. The term "opisthodomoses" originated from the Hebrew word "opis," which means "evil," and "domos." It is often used metaphorically in Jewish literature to describe the malevolent influence that a