Black obsidian is the evil eye of stones. It is a fiercely protective stone that acts as a shield to negative energy. Due to its mirror-like color and surface, it is also a lesson-teaching stone where it "shows" us where we may need to make changes while stimulating growth and clearing the mind. It is also known as a healing stone, beneficial for those who may have unresolved trauma. For those looking for a bit of protection through healing and clarity in one’s true self, obsidian gua sha is a perfect choice!