The energies of obsidian are both grounding and soothing. Black obsidian is the best for this purpose and thus, is often carved into pendant and worn. The energy works best on the root chakra, which it can be placed on, during a healing layout. It also provides protection against psychic attack and negative energies if worn or carried about. Obsidian can quickly calm down the mind if used during meditation. Obsidian tends to absorb a lot of negativity easily, so it needs to be cleansed on a regular basis, if used for healing.