"Obsidian holds powerful cleansing properties and can remove negative energy from yourself and your surroundings. This also enables it to neutralise disruptive vibrations. Obsidian removes blockages, fears and self-limiting thoughts. As strong emotions can arise during release, the stone is not intended for highly sensitive individuals. With its deep cleansing properties, it is important to cleanse the stone regularly (preferably after each use). The crystal has a grounding effect and can provide cramp relief.
Grounding, deep cleansing, detoxifying, enlightens the spirit."