Throughout history carnelian has been attributed protective powers. In Islam it was called the Mecca stone and used as an amulet against the evil eye. Muslims also believed that engraving the name of Allah on carnelian would promote courage in the bearer. Carnelian has long been seen as a symbol of joy and peace, used for promoting good cheer and banishing sorrow. In Buddhism, carnelian represented such qualities as faith, perseverance and wisdom. Many cultures employed amulets of carnelian to ward off evil, from the Buddhists of China and India to the ancient Celts and Romans. It was thought by the Egyptians to be a protective stone and was used in many amulets. According to legend, the goddess Isis shed tears of blood upon the death of her husband Osiris. The tears turned into carnelian that she then shaped into an amulet which Isis placed around the neck of Osiris to protect her husband as he journeyed to the underworld. It has also been associated with the Sacral Chakra, the Zodiac signs of Cancer and Leo and the Element of Fire.
Carnelian is considered an activating stone and can help you in realising ideas and making plans manifest. It is considered a good stone to wear if you are trying to become pregnant, and was also believed to protect from miscarriage during pregnancy.
Traditionally, carnelian has been used to treat a number of organs in the body, specifically those associated with digestive problems. It is also considered good for easing back pain.
Carnelian is said to encourage the kundalini (sexual energy) and is considered an aphrodisiac stone to some. It is claimed that it can also help overcome shyness or social inhibitions and give one the courage to speak their mind and act on their decisions.