Black Obsidian is a powerful stone for healing and cleansing. It helps to protect against negative energy and can help to keep you grounded and connected to the Earth. It is believed to stimulate growth on all levels, helping to open the heart chakra and encourage feelings of love and compassion. Black Obsidian is also thought to be a powerful tool for releasing fear and negative emotions, as well as for clearing away any blockages that may be preventing spiritual or emotional growth.