Zircon is a stone of purity and innocence. It balances the emotions and enhances self esteem and unity. It was used as an amulet by travelers to protect against accident and injury on the journey. It was also used to stop the wearer from being struck by lightning. Hindu poets tell of the Kalpa Tree, the ultimate gift to the gods, which was a glowing tree covered with gemstone fruit with leaves of zircon. In the middle ages, zircon was said to aid sleep, bring prosperity, and promote honor and wisdom in its owner.