Black Obsidian has a strong connection to Mother Earth, making it an excellent crystal to use when you are doing spiritual or healing work. It is a great tool for shadow work because it can show you the blockages, thoughts &. beliefs that hold you back so that you can process those heavy emotions without harshness or self criticism. Black Obsidian strengthens your sense of inner security, boosts your confidence &. helps you release nervousness &. anxiety. It is is a highly protective stone that purifies the atmosphere of negative energy &. protects you against psychic attacks. The chakra (CHUCK-ra) point is root.