The holy yacht was the private vessel of Shimrra Jamaane, the Supreme Overlord of the Yuuzhan Vong. When Shimrra sent the Yuuzhan Vong armada to attack the Galactic Alliance capital world of Mon Calamari, the vessel was coated with sacrificial blood, and wrought with wreaths of thorn-vine and fans sacred to Yun-Yammka. The vessel also contained a special villip which could contact any other villip, whether dedicated or choir, all at once.