Enlightenment, or awakening, in Buddhism is used to translate the Pali and Sanskrit term bodhi, which has its root in the meaning of to awaken and to know. It means direct insight into the fundamental truths of existence: the four noble truths, which are the truth of suffering, the origin of suffering, the cessation of suffering, and the path out of suffering, known as the eightfold path. Enlightenment, or awakening, is distinct from nirvana (Pali, nibbana), which is the extinguishing of suffering, as opposed to understanding the ultimate nature of reality.