Amethysts have been the subject of legend and myth, including one about mental health. In Greek mythology, a titan named Rhea gave the god of wine, Dionysus, an amethyst to help preserve his sanity. In fact, this myth led the ancient Romans to believe that amethysts could keep them from getting drunk. Today natural health practitioners don’t use amethysts for the same purpose as the Romans, though some do use them in treating addiction. Instead, amethysts are said to promote serenity, calm and as a way to help reduce your anxiety and perceptions of pain.