Obsidian is a natural form of volcanic glass. Obsidian is also a powerful stone for bringing about truth. It is an aid in shattering illusions and  preconceived ideas of reality of who you are and what is behind the intentions of the world around you. It also reveals things that are missed; faults, mistakes, weaknesses, misconceptions. It magnifies negative energy so that it can be revealed as such. Abuse of power, discord, jealousy, as well as past trauma and past lives can be examined. It can also be used in examining blockages in your aura and chakras, also for protection especially psychic protection from outside forces in this world and others.  It is a great way to develop one’s psychic abilities as it’s meditative purpose will strengthen your intuition. If you have deep work to do this is a great tool to aid you with diving in.