Black Obsidian is often using for scrying or “gazing” in order to see or gain insight into future events. You often find bowls and flat plates made of black obsidian just for this purpose. Carrying the tumbled stone with you is a good way to open up that intuitive side of you. It is also used in shamanic ceremonies to aid in the removal of disorders in the body. The stone is placed over the problem area of the body in order to lift the disorder to the surface where it is then infused with white healing light.
Obsidian is actually lustrous volcanic glass. It is an excellent grounding stone as well as one for protection, stabilizing energies that are both internal and external and for protecting against both physical and emotional harm.
Carry Obsidian with you for confidence and to expel unloving thoughts.