Obsidian's greatest gift is insight into the cause of dis-ease. It aids the digestion of anything that is hard to accept and promotes physical digestion. It detoxifies, dissolving blockages and tension in the physical and subtle bodies, including hardened arteries. It reduces that pain of arthritis, joint problems, cramps, and injuries. An elixir is beneficial for shock. It alleviates pain and stanches bleeding, benefiting the circulation. This stone warms the extremities. It can be sued to shrink an enlarged prostate.