Buddhism is based on the Four Noble Truths which state that suffering exists, it has a cause, it can end, and following the Eightfold Path will end it. The Eightfold Path consists of right understanding, speech, action, livelihood, effort, mindfulness, and concentration. Karma refers to good or bad actions that bring future happiness or unhappiness. The ultimate goal is to achieve Nirvana and be freed from reincarnation.