S2 E11 | Malevolent Curses

What does it mean when a certain location or mysterious object is referred to as "cursed"? Is it simply a creation of the human imagination mixed with myth, legends, and stories used to explain the common fears inside of us? Perhaps certain areas really are haunted or contain some dark energy emanating from a violent event in the past. Can possessing a dazzling diamond cause those who hold it to suffer misfortune, tragedy and death?