Black obsidian is often associated with mystery and has a very strong ability to absorb negative energy. For this reason it is used often in feng shui, spiritual connection and used as a talisman for protection. It is also known as a spiritual cleanser because of its ability to absorb psychic smog and helps to see things more clearly.
One of the most popular uses of black obsidian is to create a shield of protection to ward off negative or harmful energies. Wearing black obsidian or carrying it with you can help to absorb negativity that you may encounter.