Heaven

The katana Heaven was a gift to the Kakita family in 353 after Asahina's marriage and joining the Crane Clan. It was a part of a daisho with the wakizashi Earth. they were made with chips of obsidian and jade which were blended into the metal. Each of the tsuba were forged of shakudo, a blend of copper and gold, and each weapon had the Rokugani characters for heaven and earth inscribed on the tsuba. The blade of Heaven was shaped from pure copper, and shone in the light as like a part of the sun. The spirit of the blade embodied higher aspirations and overwhelmed the bearer with a powerful sense of duty and loyalty. (Crane p. 118)