There is widespread belief in ghosts in Tibetan culture. Ghosts are explicitly recognized in the Tibetan Buddhist religion as they were in Indian Buddhism,^[76] occupying a distinct but overlapping world to the human one, and feature in many traditional legends. When a human dies, after a period of uncertainty they may enter the ghost world. A hungry ghost (Tibetan: yidag, yi-dvags; Sanskrit: preta, प्रेत) has a tiny throat and huge stomach, and so can never be satisfied. Ghosts may be killed with a ritual dagger or caught in a spirit trap and burnt, thus releasing them to be reborn. Ghosts may also be exorcised, and an annual festival is held throughout Tibet for this purpose. Some say that Dorje Shugden, the ghost of a powerful 17th-century monk, is a deity, but the Dalai Lama asserts that he is an evil spirit, which has caused a split in the Tibetan exile community.