Kahless was a great warrior who united the Klingon Empire some 1,500 years ago. The story of Kahless is a cornerstone of Klingon mythology and religion.Legend has it that the messianic Kahless fought the tyrant Molor. whom he killed with the first Bat'telh. Another of the epic tales of Kahless Relates to how he fought his brother, Morath, for twelve days and twelve nights because morath had lied and brought shame to his family. Klingons believe that warriors who die honorably join kahless, who awaits them in Sto-Vo-Kor, the afterlife. Just before his death,Kahless pointed to a star and promised that he would one day return there. Klingon clerics established a monastery on Boreth, a planet orbiting that star, where they waited for centuries for Kahless to return.