Buddhism is a religion and philosophy that focuses on spiritual enlightenment and escaping the cycle of rebirth. Its core teachings are the Four Noble Truths and the Eightfold Path. The Four Noble Truths explain that life involves suffering, its cause is craving and ignorance, and the end of suffering can be reached by eliminating craving and ignorance. The Eightfold Path outlines a set of guidelines for moral conduct, mental development, and wisdom to reach enlightenment and escape suffering. Buddhism also teaches that karma and rebirth govern the cycle of life, death, and rebirth, with the goal of achieving nirvana or union with the ultimate spiritual reality.