Kalachakra in Yi-dam (god protector) who turns the wheel of life. Kalachakra is the title of a work in one of the division of the Kangyur. It is possible that Kalachakra is a personification of that wok. Kalachakra is usually as a Yidam with four head on each of which is third eye. He may have twelve or twenty-four arms but never has more than two legs. In his Yi-dam form he is dark blue. A tiger skin covers his body; he wears a belt formed of Vajras. He is always represented stepping to the left on two prostrate personges or demon, with four arms. The personage under the right foot holds a bow and arrow the one under the left a trident and Khatvanga.